N,K=(int(x) for x in input().split())
S=[]
for i in range(N):
    s=str(input())
    S.append(s)

T={}
for  i in range(N):
    t=str(input())
    T[t] = i

for num, i in enumerate(S):
    if abs(T[i] - num) % K != 0:
        print("No")
        exit()

print("Yes")