N, K = map(int, input().split())
list_a = [input().strip() for _ in range(N)]
list_b = [input().strip() for _ in range(N)]    

for i, item in enumerate(list_a):
    j = list_b.index(item)
    if (i - j) % K  != 0:
        print("No")
    else:
        break
else:
     print("Yes")