n, k = map(int, input().split())
s = [input() for _ in range(n)]
t = [input() for _ in range(n)]
canSwap = True
for i in range(n):
    dist = abs(i - int(t.index(s[i])))
    if dist % k != 0:
        print("No")
        canSwap = False
        break
if canSwap:
    print("Yes")