#include <bits/stdc++.h>
using namespace std;

#define FOR(i,l,r) for(int i = (int) (l);i < (int) (r);i++)
#define ALL(x) x.begin(),x.end()
template<typename T> bool chmax(T& a,const T& b){ return a < b ? (a = b,true) : false; }
template<typename T> bool chmin(T& a,const T& b){ return b < a ? (a = b,true) : false; }
typedef long long ll;

int N,M;
int edge [50] [50];

int main()
{
	scanf("%d%d",&N,&M);
	FOR(i,0,M){
		int u,v;
		scanf("%d%d",&u,&v);
		edge [u] [v] = 1;
		edge [v] [u] = 1;
	}

	int ans = 0;
	FOR(i,0,N) FOR(j,0,N) FOR(k,0,N) FOR(l,0,N){
		if(i != j && i != k && i != l && j != k && j != l && k != l){
			if(edge [i] [j] && edge [j] [k] && edge [k] [l] && edge [l] [i] && !edge [i] [k] && !edge [j] [l]){
				ans++;
			}
		}
	}

	ans /= 8;
	printf("%d\n",ans);

	return 0;
}