#include <bits/stdc++.h>
#define MOD 104659
#define ull unsigned long long

using namespace std;

ifstream fin("numere.in");
ofstream fout("numere.out");

bitset<4100> mat[4100];
int p1[65540];
int p2[65540];
int n,m;

int main()
{
    int a,b,i,j,r,sum = 0,k;
    fin>>n>>m;
    for(i = 1; i <= m; i++){
        fin>>a>>b;
        mat[a][b] = 1;
        mat[b][a] = 1;
        p1[i] = a;
        p2[i] = b;
    }
    for(i = 1; i <= m; i++){
        a=p1[i];
        b=p2[i];
        sum += (mat[a]&mat[b]).count();
    }
    fout<<sum/3<<'\n';
    return 0;
}