#include <cstdio>
#include <algorithm>
#include <bitset>

#define NMAX 66007
#define MMAX 4107

using namespace std;

int n, m, a[NMAX],b[NMAX],Ans;
bitset <MMAX> c[MMAX], Sol;

int main(){
    freopen("triplete.in", "r", stdin);
    freopen("triplete.out", "w", stdout);
    scanf("%d %d", &n, &m);
    for(int i = 1; i <= m; ++i){
        scanf("%d %d", &a[i], &b[i]);
        c[min(a[i], b[i])].set(max(a[i], b[i]));
    }
    for(int i = 1; i <= m; ++i){
        Sol = (c[a[i]] & c[b[i]]);
        Ans += Sol.count();
    }
    printf("%d\n", Ans);
    return 0;
}