a, b = map(int, input().split())
T = list(map(int, input().split()))
S = list(map(int, input().split()))
if len(set(T)) == 1:
    if all(s % T[0] == 0 for s in S):
        print('Yes')
    else:
        print('No')
    exit()
if all(t & 1 == 0 for t in T):
    if any(s & 1 for s in S):
        print('No')
    else:
        print('Yes')
    exit()
if any(t & 1 for t in T):
    print('Yes')
    exit()
print('No')