import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

import numpy as np
import itertools

N,M = map(int,readline().split())
m = map(int,read().split())
AB = zip(m,m)

G = np.zeros((N,N),np.bool)
for a,b in AB:
    G[a,b] = 1
    G[b,a] = 1

ABCD = np.array(list(itertools.product(range(N),repeat=4)))

ABCD = ABCD[G[ABCD[:,0], ABCD[:,1]]]
ABCD = ABCD[G[ABCD[:,1], ABCD[:,2]]]
ABCD = ABCD[G[ABCD[:,2], ABCD[:,3]]]
ABCD = ABCD[G[ABCD[:,3], ABCD[:,0]]]
ABCD = ABCD[~G[ABCD[:,0], ABCD[:,2]]]
ABCD = ABCD[~G[ABCD[:,1], ABCD[:,3]]]
ABCD = ABCD[ABCD[:,0] != ABCD[:,2]]
ABCD = ABCD[ABCD[:,1] != ABCD[:,3]]

answer = len(ABCD) // 8
print(answer)