#include <iostream>
#include <vector>
using namespace std;
int main(){
	int N, M;
	cin >> N >> M;
	vector<vector<bool>> E(N, vector<bool>(N, false));
	for (int i = 0; i < M; i++){
		int a, b;
		cin >> a >> b;
		E[a][b] = true;
		E[b][a] = true;
	}
	int ans = 0;
	for (int i = 0; i < N; i++){
		for (int j = i + 1; j < N; j++){
			for (int k = j + 1; k < N; k++){
				for (int l = k + 1; l < N; l++){
					if (E[i][j] && E[j][k] && E[k][l] && E[l][i] && !E[i][k] && !E[j][l]){
						ans++;
					}
					if (E[i][k] && E[k][j] && E[j][l] && E[l][i] && !E[i][j] && !E[k][l]){
						ans++;
					}
					if (E[i][j] && E[j][l] && E[l][k] && E[k][i] && !E[i][l] && !E[j][k]){
						ans++;
					}
				}
			}
		}
	}
	cout << ans << endl;
}