mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    N, M = map(int, input().split())
    adj = [[0] * N for _ in range(N)]
    for _ in range(M):
        a, b = map(int, input().split())
        adj[a][b] = 1
        adj[b][a] = 1

    ans = 0
    for i in range(N):
        for j in range(N):
            for k in range(N):
                for l in range(N):
                    if len([i, j, k, l]) != len({i, j, k, l}):
                        continue
                    if adj[i][j] and adj[j][k] and adj[k][l] and adj[l][i] and adj[i][k] == 0 and adj[j][l] == 0:
                        ans += 1
    print(ans // 8)


if __name__ == '__main__':
    main()