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

ans = 'Yes'
for i in range(n):
    index = ts.index(ss[i])
    if i % k != index % k:
        ans = 'No'
        break

print(ans)