#include <bits/stdc++.h>
using namespace std;
int m,n,i,j,in,sf,mid,nr,k,x,y;
vector<int>g[4196];
bitset<4196>b[4196];
int main()
{
    ifstream f ("triplete.in");
    ofstream G ("triplete.out");
    f>>n>>m;
    for(i=1; i<=m; ++i)
    {
        f>>x>>y;
        g[x].push_back(y);
        g[y].push_back(x);
        b[x][y]=b[y][x]=1;
    }
    for(i=1; i<=n; ++i)
        for(j=0; j<g[i].size(); ++j)
            for(k=0; k<g[g[i][j]].size(); ++k)
                if(b[i][g[g[i][j]][k]])++nr;
    G<<nr/6;
    return 0;
}