S = []
T = []
u = 0
N,K = input().split()
N = int(N)
K = int(K)

for i in range(1,N+1):
    S.append(input())
for j in range(1,N+1):
    T.append(input())

for i in range(0,N):
    m = T.index(S[i])
    if (m - i) % K != 0:
        u = 1
if u == 0:
    print("Yes")
else:
    print("No")