from itertools import combinations

n, m = tuple(int(x) for x in input().split())
mtx = [[False for _ in range(n)] for _ in range(n)]

for _ in range(m):
    a, b = tuple(int(x) for x in input().split())
    mtx[a][b] = mtx[b][a] = True

def check_square(i, j, k, l):
    return mtx[i][j] and mtx[j][k] and mtx[k][l] and mtx[l][i] and not mtx[i][k] and not mtx[j][l]

cnt = 0

for i, j, k, l in combinations(range(n), 4):
    if check_square(i, j, k, l):
        cnt += 1
    elif check_square(i, k, j, l):
        cnt += 1
    elif check_square(i, j, l, k):
        cnt += 1

print(cnt)