# 力づく全探索
from itertools import permutations

N, M = map(int, input().split())
G = [set() for _ in range(N)]
for _ in range(M):
    a, b = map(int, input().split())
    G[a].add(b)
    G[b].add(a)

ans = 0
for a in range(N):
    for b in range(a+1,N):
        for c in range(b+1,N):
            for d in range(c+1,N):

                flag3 = False
                for p3 in permutations([a,b,c,d],3):
                    flag = True
                    for i in range(3):
                        pre = p3[(i-1) % 3]
                        post = p3[(i+1) % 3]
                        if pre not in G[p3[i]] or post not in G[p3[i]]:
                            flag = False
                    if flag:
                        flag3 = True
                        break 
                if flag3:
                    continue

                flag4 = False
                for p4 in permutations([a,b,c,d]):
                    flag = True
                    for i in range(4):
                        pre = p4[(i-1) % 4]
                        post = p4[(i+1) % 4]
                        if pre not in G[p4[i]] or post not in G[p4[i]]:
                            flag = False
                    if flag:
                        flag4 = True
                        break

                if flag4:
                    ans += 1

print(ans)