n, k = map(int, input().split())
ss = [input() for _ in range(n)]
ts = [input() for _ in range(n)]

table = dict()
for i, s in enumerate(ss):
    table[s] = i % k

for i, t in enumerate(ts):
    if i % k != table[t]:
        print("No")
        exit()

print("Yes")