from itertools import combinations

N, M = map(int, input().split())
edge = set()
for _ in range(M):
    u, v = map(int, input().split())
    edge.add((u, v))
    edge.add((v, u))
abc = tuple(sorted(map(int, input().split())))

for comb in combinations(range(4), 3):
    if comb == abc:
        continue
    a, b, c = comb
    if (a, b) in edge and (b, c) in edge and (c, a) in edge:
        print("Yes")
        break
else:
    if (0, 1) in edge and (1, 2) in edge and (2, 3) in edge and (3, 0) in edge:
        print("Yes")
    else:
        print("No")