N, K = map(int, input().split())
S = [input() for _ in range(N)]
T = [input() for _ in range(N)]

A = [set() for _ in range(K)]
for i, s in enumerate(S):
    A[i%K].add(s)
for i, t in enumerate(T):
    A[i%K].discard(t)

print("Yes" if sum(len(k) for k in A) == 0 else "No")