#include<cstdio>

#define dim 1 << 12

int N, A[dim][dim];

long M;

long long unsigned SOL;

void read()
{
     freopen("triplete.in", "r", stdin);
     
     scanf("%d %ld", &N, &M);

     long i, a, b;
     
     for(i=1; i<=M; ++i)
     {
              scanf("%d %d", &a, &b);
              A[a][b] = A[b][a] = 1;
     }
}

void write()
{
     freopen("triplete.out", "w", stdout);
     
     printf("%llu", SOL);
}

int main()
{
    read();

    int i, j, k;
    
    for(i=1; i<=N-2; ++i)
             for(j=i+1; j<N; ++j)
                        for(k=j+1; k<=N; ++k)
                                   if(A[i][j] && A[j][k] && A[k][i])
                                              ++ SOL;
    
    write();
    
    fclose(stdin); fclose(stdout);
    return 0;
}