#include <bits/stdc++.h>
using namespace std;
ifstream f("triplete.in");
ofstream g("triplete.out");
const int nMax = 4099;
const int mMax = 65536;
bitset <nMax> a[nMax];
int x[mMax],y[mMax];
int main()
{
    int n , m;
    f>> n >> m;
    for(int i = 1; i <= m; i++) {
        f>> x[i] >> y[i];
        if(x[i] > y[i]) {
            swap(x[i],y[i]);
        }
        a[x[i]][y[i]] = 1;
    }
    int sol = 0;
    for(int i = 1; i <= m; i++) {
        sol += (a[x[i]] & a[y[i]]).count();
    }
    g<< sol << "\n";
    return 0;
}