Изоморфизм в графах

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import java.io.*;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.Scanner;


public class Main {


 class Problem {
  
  class Graf {
   int size;
   BigInteger[][] m;
   
   void init(int sz) {
    size = sz;
    m = new BigInteger[size][size];
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      m[i][j] = new BigInteger("0");
     }
    }
   }
   
   Graf() {
    init(0);
   }
   
   Graf(int sz) {
    init(sz);
   }
   
   void add(int a, int b) {
    m[a][b] = new BigInteger("1");
    m[b][a] = new BigInteger("1");
   }
   
   void add3(int a, int b1, int b2, int b3) {
    add(a, b1);
    add(a, b2);
    add(a, b3);
   }
   
   void read(Scanner in) {
    init(in.nextInt());
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      m[i][j] = in.nextBigInteger();
     }
    }
   }
   
   void read_ribs(Scanner in) {
    init(in.nextInt());
    int m = in.nextInt();
    for (int i = 0; i < m; i++) {
     int a = in.nextInt();
     int b = in.nextInt();
     a--;
     b--;
     
     add(a, b);
    }
   }
   
   void copy(Graf gf) {
    init(gf.size);
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      m[i][j] = gf.m[i][j];
     }
    }
   }
   
   void copy(Graf gf, int[] p) {
    init(gf.size);
    for (int i = 0; i < gf.size; i++) {
     for (int j = 0; j < gf.size; j++) {
      m[i][j] = gf.m[p[i]][p[j]];
     }
    }
   }
   
   void multiply(Graf gf) {
    Graf temp = new Graf();
    temp = new Graf(size);
    BigInteger sum;
    
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      sum = new BigInteger("0");
      for (int k = 0; k < size; k++) {
       sum = sum.add(m[i][k].multiply(gf.m[k][j]));
      }
      temp.m[i][j] = sum;
     }
    }
    copy(temp);
   }
   
   void write(PrintWriter out) {
    int width[] = new int[size];
    
    out.println(size);
    if (size == 0) return;
    for (int i = 0; i < size; i++) {
     width[i] = m[0][i].toString().length();
    }
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      if (width[j] < m[i][j].toString().length()) {
       width[j] = m[i][j].toString().length();
      }
     }
    }
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      out.print(m[i][j] + " ");
      for (int k = m[i][j].toString().length(); k < width[j]; k++) {
       out.print(" ");
      }
     }
     out.println();
    }
    out.println();
   }
   
   void write(PrintWriter out, int[] p) {
    int width[] = new int[size];
    
    out.println(size);
    if (size == 0) return;
    for (int i = 0; i < size; i++) {
     width[p[i]] = m[0][p[i]].toString().length();
    }
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      if (width[p[j]] < m[p[i]][p[j]].toString().length()) {
       width[p[j]] = m[p[i]][p[j]].toString().length();
      }
     }
    }
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      out.print(m[p[i]][p[j]] + " ");
      for (int k = m[p[i]][p[j]].toString().length(); k < width[p[j]]; k++) {
       out.print(" ");
      }
     }
     out.println();
    }
    out.println();
   }
   
   int compareTo(Graf gf) {
    if (size < gf.size) return -1;
    if (size > gf.size) return 1;
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      if (m[i][j].compareTo(gf.m[i][j]) != 0) {
       return m[i][j].compareTo(gf.m[i][j]);
      }
     }
    }
    
    return 0;
   }
   
   int compareTo(Graf gf, int[] ind) {
    if (size < gf.size) return -1;
    if (size > gf.size) return 1;
    for (int i = 0; i < size; i++) {
     for (int j = 0; j < size; j++) {
      if (m[i][j].compareTo(gf.m[ind[i]][ind[j]]) != 0) {
       return m[i][j].compareTo(gf.m[ind[i]][ind[j]]);
      }
     }
    }
    
    return 0;
   }
   
   void swapVertexes(int u, int v) {
    BigInteger temp;
    
    for (int i = 0; i < size; i++) {
     temp = m[u][i];
     m[u][i] = m[v][i];
     m[v][i] = temp;
    }
    for (int i = 0; i < size; i++) {
     temp = m[i][u];
     m[i][u] = m[i][v];
     m[i][v] = temp;
    }
   }
  }
 
 
  class BijectiveMapping {
   int size;
   int p[];
    
   private boolean partEqual(PrintWriter out, int n, UniqueGrafProperty gp1, UniqueGrafProperty gp2) {
    if (gp2.v[p[n]].compareTo(gp1.v[n]) != 0) {
     return false;
    }
    for (int i = 0; i <= n; i++) {
     if (gp2.v[p[n]].r[p[i]].compareTo(gp1.v[n].r[i]) != 0) {
      return false;
     }
    }
    
    return true;
   }
   
   private void swap_order(int[] m, int a, int b) {
    int t;
    
    t = m[a];
    m[a] = m[b];
    m[b] = t;
   }
   
   BijectiveMapping(PrintWriter out, Graf gf1, Graf gf2, UniqueGrafProperty gp1, UniqueGrafProperty gp2) {
    size = gp1.size;
    p = new int[size];
    for (int i = 0; i < size; i++) {
     p[i] = i;
    }
    for (int i = 0; i < size; i++) {
     for (int j = i; j < size; j++) {
      swap_order(p, i, j);
      if (partEqual(out, i, gp1, gp2)) {
       break;
      }
     }
    }
   }
  }
 
  class IsomorphusCheck {
   final int NO = 0;
   final int YES = 1;
   final int AMBIGUOUS = -1;
   
   int bruteForce(Graf gf1, Graf gf2) {
    int p[] = new int[gf1.size];
    
    for (int i = 0; i < gf1.size; i++) {
     p[i] = i;
    }
    if (gf1.compareTo(gf2, p) == 0) return YES;
    while (true) {
     boolean ok = false;
     
     for (int i = gf1.size - 1; i > 0; i--) {
      if (p[i - 1] < p[i]) {
       int min_ind = i;
       int temp;
       int l, r;
       
       for (int j = i; j < gf1.size; j++) {
        if ((p[j] > p[i - 1]) && (p[j] < p[min_ind])) {
         min_ind = j;
        }
       }
       temp = p[i - 1];
       p[i - 1] = p[min_ind];
       p[min_ind] = temp;
       l = i;
       r = gf1.size - 1;
       while (l < r) {
        temp = p[l];
        p[l] = p[r];
        p[r] = temp;
        l++;
        r--;
       }
       ok = true;
       break;
      }
     }
     if (!ok) break;
     if (gf1.compareTo(gf2, p) != 0) {
      return NO;
     } else {
      return YES;
     }
    }
    
    return NO;
   }
   
   int heuristic(Graf gf1, Graf gf2) {
    UniqueGrafProperty gp1 = new UniqueGrafProperty(gf1);
    UniqueGrafProperty gp2 = new UniqueGrafProperty(gf2);
 //   BijectiveMapping bm = new BijectiveMapping(out, gf1, gf2, gp1, gp2);
 
 //   for (int i = 0; i < bm.size; i++) {
 //    out.println("" + (i + 1) + " -> " + (bm.p[i] + 1));
 //   }
 //   out.println();
 //   gf1.write(out);
 //   gf2.write(out, bm.p);
      
    if (gp1.size != gp2.size) return NO;
    if (gp1.compareTo(gp2) != 0) {
     return NO;
    } else {
     return YES;
 //    Graf gf3 = new Graf();
 //    gf3.copy(gf2, bm.p);
 //    if (gf1.compareTo(gf3) == 0) {
 //     return YES;
 //    } else {
 //     return AMBIGUOUS;
 //    }
    }
   }
  }
 
 
  class UniqueRibProperty implements Comparable<uniqueribproperty> {
   int size;
   BigInteger a[];
   
   UniqueRibProperty(int sz) {
    size = sz;
    a = new BigInteger[sz];
    for (int i = 0; i < size; i++) {
     a[i] = new BigInteger("0");
    }
   }
   
   public int compareTo(UniqueRibProperty rp) {
    for (int i = 0; i < size; i++) {
     if (a[i].compareTo(rp.a[i]) != 0) {
      return a[i].compareTo(rp.a[i]);
     }
    }
    
    return 0;
   }
   
   void write(PrintWriter out) {
    out.print("{");
    for (int i = 0; i < size; i++) {
     out.print(a[i]);
     if (i < size - 1) {
      out.print(", ");
     }
    }
    out.print("}");
   }
   
   void write_hash(PrintWriter out) {
    BigInteger h = new BigInteger("0");
    
    for (int i = 0; i < size; i++) {
     h = h.multiply(new BigInteger("499")).add(a[i]);
    }
    h = h.divideAndRemainder(new BigInteger("10000"))[1];
    if (h.compareTo(new BigInteger("1000")) < 0) {
     out.print(" ");
    }
    if (h.compareTo(new BigInteger("100")) < 0) {
     out.print(" ");
    }
    if (h.compareTo(new BigInteger("10")) < 0) {
     out.print(" ");
    }
    out.print(h.divideAndRemainder(new BigInteger("10000"))[1]);
   }
  }
 
  class UniqueVertexProperty implements Comparable<UniqueVertexProperty> {
   int size;
   int num;
   UniqueRibProperty r[];
   UniqueRibProperty sr[];
   
   UniqueVertexProperty(int sz) {
    size = sz;
    r = new UniqueRibProperty[size];
    sr = new UniqueRibProperty[size];
    for (int i = 0; i < size; i++) {
     r[i] = new UniqueRibProperty(size);
    }
   }
   
   public int compareTo(UniqueVertexProperty vp) {
    for (int i = 0; i < size; i++) {
     if (sr[i].compareTo(vp.sr[i]) != 0) {
      return sr[i].compareTo(vp.sr[i]);
     }
    }
 
    return 0;
   }
   
   void write(PrintWriter out) {
    out.print("{");
    for (int i = 0; i < size; i++) {
     sr[i].write(out);
     if (i < size - 1) {
      out.print(", ");
     }
    }
   }
  }
 
  class UniqueGrafProperty implements Comparable<UniqueGrafProperty> {
   int size;
   UniqueVertexProperty v[];
   UniqueVertexProperty sv[];
   
   UniqueGrafProperty(Graf gf) {
    size = gf.size;
    v = new UniqueVertexProperty[size];
    sv = new UniqueVertexProperty[size];
    Graf temp = new Graf(gf.size);
    
    for (int i = 0; i < size; i++) {
     v[i] = new UniqueVertexProperty(size);
     v[i].num = i;
    }
    temp.copy(gf);
    for (int k = 0; k < gf.size; k++) {
     for (int i = 0; i < gf.size; i++) {
      for (int j = 0; j < gf.size; j++) {
       v[i].r[j].a[k] = temp.m[i][j];
      }
     }
     temp.multiply(gf);
    }
    for (int i = 0; i < size; i++) {
     sv[i] = v[i];
     for (int j = 0; j < size; j++) {
      sv[i].sr[j] = v[i].r[j];
     }
    }
    for (int i = 0; i < size; i++) {
     Arrays.sort(sv[i].sr);
    }
    Arrays.sort(sv);
   }
   
   public int compareTo(UniqueGrafProperty gp) {
    for (int i = 0; i < size; i++) {
     if (sv[i].compareTo(gp.sv[i]) != 0) {
      return sv[i].compareTo(gp.sv[i]);
     }
    }
    
    return 0;
   }
   
   void write(PrintWriter out) {
    for (int i = 0; i < size; i++) {
     out.print("" + i + ": ");
     for (int j = 0; j < size; j++) {
      v[i].r[j].write_hash(out);
      out.print("   ");
     }
     out.println();
    }
    out.println();
   }
   
   void write(PrintWriter out, int n) {
    for (int i = 0; i < n; i++) {
     out.print("" + i + ": ");
     for (int j = 0; j < n; j++) {
      v[i].r[j].write_hash(out);
      out.print("   ");
     }
     out.println();
    }
    out.println();
   }
   
   void write(PrintWriter out, int[] p) {
    for (int i = 0; i < size; i++) {
     out.print("" + i + ": ");
     for (int j = 0; j < size; j++) {
      v[p[i]].r[p[j]].write_hash(out);
      out.print("   ");
     }
     out.println();
    }
    out.println();
   }
   
   void write(PrintWriter out, int[] p, int n) {
    for (int i = 0; i < n; i++) {
     out.print("" + i + ": ");
     for (int j = 0; j < n; j++) {
      v[p[i]].r[p[j]].write_hash(out);
      out.print("   ");
     }
     out.println();
    }
    out.println();
   }
  }

  class Sky {
   Graf snark0() {
    Graf g = new Graf(26);

    g.add3(0, 1, 4, 15);
    g.add3(1, 0, 2, 6);
    g.add3(2, 1, 3, 7);
    g.add3(3, 2, 9, 19);
    g.add3(4, 0, 5, 10);
    g.add3(5, 4, 6, 11);
    g.add3(6, 1, 5, 12);
    g.add3(7, 2, 8, 12);
    g.add3(8, 7, 9, 13);
    g.add3(9, 3, 8, 14);
    g.add3(10, 4, 16, 20);
    g.add3(11, 5, 15, 20);
    g.add3(12, 6, 7, 17);
    g.add3(13, 8, 19, 23);
    g.add3(14, 9, 18, 23);
    g.add3(15, 0, 11, 16);
    g.add3(16, 10, 15, 21);
    g.add3(17, 12, 24, 25);
    g.add3(18, 14, 19, 22);
    g.add3(19, 3, 13, 18);
    g.add3(20, 10, 11, 24);
    g.add3(21, 16, 22, 25);
    g.add3(22, 18, 21, 24);
    g.add3(23, 13, 14, 25);
    g.add3(24, 17, 20, 22);
    g.add3(25, 17, 21, 23);

    return g;
   }

   Graf snark1() {
    Graf g = new Graf(26);

    g.add3(0, 1, 3, 19);
    g.add3(1, 0, 2, 5);
    g.add3(2, 1, 6, 22);
    g.add3(3, 0, 4, 11);
    g.add3(4, 3, 5, 7);
    g.add3(5, 1, 4, 25);
    g.add3(25, 5, 6, 9);
    g.add3(6, 2, 16, 25);
    g.add3(7, 4, 8, 13);
    g.add3(8, 7, 9, 10);
    g.add3(9, 8, 14, 25);
    g.add3(10, 8, 17, 18);
    g.add3(11, 3, 20, 23);
    g.add3(12, 17, 19, 23);
    g.add3(13, 7, 14, 18);
    g.add3(14, 9, 13, 17);
    g.add3(15, 18, 22, 24);
    g.add3(16, 6, 21, 24);
    g.add3(17, 10, 12, 14);
    g.add3(18, 10, 13, 15);
    g.add3(19, 0, 12, 20);
    g.add3(20, 11, 19, 21);
    g.add3(21, 16, 20, 22);
    g.add3(22, 2, 15, 21);
    g.add3(23, 11, 12, 24);
    g.add3(24, 15, 16, 23);

    return g;
   }

   Graf snark2() {
    Graf g = new Graf(18);

    g.add3(0, 1, 16, 17);
    g.add3(1, 0, 2, 13);
    g.add3(2, 1, 3, 7);
    g.add3(3, 2, 4, 17);
    g.add3(4, 3, 5, 16);
    g.add3(5, 4, 6, 9);
    g.add3(6, 5, 7, 11);
    g.add3(7, 6, 8, 2);
    g.add3(8, 7, 9, 12);
    g.add3(9, 8, 10, 5);
    g.add3(10, 9, 11, 15);
    g.add3(11, 10, 12, 6);
    g.add3(12, 11, 13, 8);
    g.add3(13, 12, 14, 1);
    g.add3(14, 13, 15, 17);
    g.add3(15, 14, 16, 10);
    g.add3(16, 15, 0, 4);
    g.add3(17, 0, 3, 14);

    return g;
   }

   Graf snark3() {
    Graf g = new Graf(30);

    g.add3(0, 1, 8, 11);
    g.add3(1, 0, 2, 16);
    g.add3(2, 1, 6, 9);
    g.add3(3, 4, 11, 14);
    g.add3(4, 3, 5, 19);
    g.add3(5, 4, 9, 12);
    g.add3(6, 2, 7, 14);
    g.add3(7, 6, 8, 22);
    g.add3(8, 0, 7, 12);
    g.add3(9, 2, 5, 10);
    g.add3(10, 9, 11, 25);
    g.add3(11, 0, 3, 10);
    g.add3(12, 5, 8, 13);
    g.add3(13, 12, 14, 28);
    g.add3(14, 3, 6, 13);
    g.add3(15, 29, 16, 20);
    g.add3(16, 15, 17, 1);
    g.add3(17, 16, 18, 27);
    g.add3(18, 17, 19, 23);
    g.add3(19, 18, 20, 4);
    g.add3(20, 19, 21, 15);
    g.add3(21, 20, 22, 26);
    g.add3(22, 21, 23, 7);
    g.add3(23, 22, 24, 18);
    g.add3(24, 23, 25, 29);
    g.add3(25, 24, 26, 10);
    g.add3(26, 25, 27, 21);
    g.add3(27, 26, 28, 17);
    g.add3(28, 27, 29, 13);
    g.add3(29, 28, 15, 24);

    return g;
   }

   Graf snark4() {
    Graf g = new Graf(22);

    g.add3(0, 1, 2, 20);
    g.add3(1, 0, 3, 21);
    g.add3(2, 0, 5, 6);
    g.add3(3, 1, 4, 6);
    g.add3(4, 3, 5, 7);
    g.add3(5, 2, 4, 8);
    g.add3(6, 2, 3, 9);
    g.add3(7, 4, 14, 15);
    g.add3(8, 5, 16, 17);
    g.add3(9, 6, 11, 12);
    g.add3(10, 11, 15, 20);
    g.add3(11, 9, 10, 14);
    g.add3(12, 9, 13, 17);
    g.add3(13, 12, 16, 21);
    g.add3(14, 7, 11, 18);
    g.add3(15, 7, 10, 16);
    g.add3(16, 8, 13, 15);
    g.add3(17, 8, 12, 19);
    g.add3(18, 14, 19, 20);
    g.add3(19, 17, 18, 21);
    g.add3(20, 0, 10, 18);
    g.add3(21, 1, 13, 19);

    return g;
   }

   Graf snark5() {
    Graf g = new Graf(22);

    g.add3(0, 1, 2, 20);
    g.add3(1, 0, 3, 21);
    g.add3(2, 0, 5, 6);
    g.add3(3, 1, 4, 6);
    g.add3(4, 3, 5, 7);
    g.add3(5, 2, 4, 8);
    g.add3(6, 2, 3, 9);
    g.add3(7, 4, 14, 15);
    g.add3(8, 5, 16, 17);
    g.add3(9, 6, 11, 12);
    g.add3(10, 11, 15, 20);
    g.add3(11, 9, 10, 14);
    g.add3(12, 9, 13, 17);
    g.add3(13, 12, 16, 21);
    g.add3(14, 7, 11, 18);
    g.add3(15, 7, 10, 19);
    g.add3(16, 8, 13, 18);
    g.add3(17, 8, 12, 19);
    g.add3(18, 14, 16, 20);
    g.add3(19, 17, 15, 21);
    g.add3(20, 0, 10, 18);
    g.add3(21, 1, 13, 19);

    return g;
   }

   Graf snark6() {
    Graf g = new Graf(20);

    g.add3(0, 14, 1, 15);
    g.add3(1, 0, 2, 11);
    g.add3(2, 1, 3, 7);
    g.add3(3, 2, 4, 16);
    g.add3(4, 3, 5, 14);
    g.add3(5, 4, 6, 10);
    g.add3(6, 5, 7, 17);
    g.add3(7, 6, 8, 2);
    g.add3(8, 7, 9, 13);
    g.add3(9, 8, 10, 18);
    g.add3(10, 9, 11, 5);
    g.add3(11, 10, 12, 1);
    g.add3(12, 11, 13, 19);
    g.add3(13, 12, 14, 8);
    g.add3(14, 13, 0, 4);
    g.add3(15, 19, 16, 0);
    g.add3(16, 15, 17, 3);
    g.add3(17, 16, 18, 6);
    g.add3(18, 17, 19, 9);
    g.add3(19, 18, 15, 12);

    return g;
   }

   Graf snark7() {
    Graf g = new Graf(20);

    g.add3(0, 4, 1, 15);
    g.add3(1, 0, 2, 16);
    g.add3(2, 1, 3, 17);
    g.add3(3, 2, 4, 18);
    g.add3(4, 3, 0, 19);
    g.add3(5, 6, 14, 15);
    g.add3(6, 5, 7, 16);
    g.add3(7, 6, 8, 17);
    g.add3(8, 7, 9, 18);
    g.add3(9, 8, 10, 19);
    g.add3(10, 9, 11, 15);
    g.add3(11, 10, 12, 16);
    g.add3(12, 11, 13, 17);
    g.add3(13, 12, 14, 18);
    g.add3(14, 13, 5, 19);
    g.add3(15, 0, 5, 10);
    g.add3(16, 1, 6, 11);
    g.add3(17, 2, 7, 12);
    g.add3(18, 3, 8, 13);
    g.add3(19, 4, 9, 14);

    return g;
   }
  }

  
  
  void solve() {
   Scanner in = new Scanner(System.in);
   PrintWriter out = new PrintWriter(System.out);
 //  Graf gf1 = new Graf();
 //  Graf gf2 = new Graf();
   //Timer timer = new Timer();
   int checkResult;
   Graf[] snark;
   Graf g = new Graf();
   String[] name = new String[7];
   Sky sky = new Sky();
   IsomorphusCheck isomorphusCheck = new IsomorphusCheck();
   
   name[0] = "First Celmins-Swart Snark";
   name[1] = "Second Celmins-Swart Snark";
   name[2] = "Blanusa Snark";
   name[3] = "Double Star Snark";
   name[4] = "First Loupekine Snark";
   name[5] = "Second Loupekine Snark";
   name[6] = "Flower Snark";
  
   snark = new Graf[8];
   snark[0] = sky.snark0();
   snark[1] = sky.snark1();
   snark[2] = sky.snark2();
   snark[3] = sky.snark3();
   snark[4] = sky.snark4();
   snark[5] = sky.snark5();
   snark[6] = sky.snark6();
   snark[7] = sky.snark7();
   
 //  for (int i = 0; i < 7; i++) {
 //   for (int j = 0; j < snark[i].m.length; j++) {
 //    int cnt = 0;
 //    
 //    for (int k = 0; k < snark[i].m[j].length; k++) {
 //     if (snark[i].m[j][k].compareTo(BigInteger.ZERO) != 0) cnt++;
 //    }
 //    if (cnt != 3) {
 //     out.print("No balanse in " + name[i] + ": vertex " + j + "\n");
 //    }
 //   }
 //  }
 //  
 //  for (int i = 0; i < 18; i++) {
 //   for (int j = i + 1; j < 18; j++) {
 //    if (snark[2].m[i][j].compareTo(BigInteger.ZERO) != 0) out.println("" + i + " " + j);
 //   }
 //  }
 //  
 //  Graf tg = snark[2];
 //  
 //  out.println(tg.size);
 //  for (int i = 0; i < tg.size; i++) {
 //   for (int j = i + 1; j < tg.size; j++) {
 //    if (tg.m[i][j].compareTo(BigInteger.ZERO) != 0) {
 //     out.println("" + i + " " + j);
 //    }
 //   }
 //  }
   //timer.fixTime();
   g.read_ribs(in);
   if (g.size > 30) {
    out.print("Not a Snark!");
    out.flush();
    return;
   }
   for (int i = 0; i < g.size; i++) {
    int cnt = 0;
    for (int j = 0; j < g.size; j++) {
     if (g.m[i][j].compareTo(BigInteger.ZERO) != 0) cnt++;
    }
    if (cnt != 3) {
     out.print("Not a Snark!");
     out.flush();
     return;
    }
   }
   for (int i = 0; i < 7; i++) {
    checkResult = isomorphusCheck.heuristic(g, snark[i]);
    if (checkResult == isomorphusCheck.YES) {
     out.print(name[i]);
     out.flush();
     return;
    }
   }
 //  checkResult = IsomorphusCheck.heuristic(snark[4], snark[5]);
 //  if (checkResult == IsomorphusCheck.YES) {
 //   out.println("Grafs are isomorphus!");
 //  } else if (checkResult == IsomorphusCheck.NO) {
 //   out.println("Grafs aren't isomorphus.");
 //  } else {
 //   out.println("An algoritm isn't able to solve this case...");
 //  }
 //  out.println("Heuristic algorithm takes " + timer.getTime() + " ms...");
   
   out.print("Not a Snark!");
   out.flush();
 
  }
 }

 void func() {
  Problem problem = new Problem();
  
  problem.solve();
 }
 
 public static void main(String[] args) {
  (new Main()).func();
  int a = 2 + 2;
 }
}