n,k=map(int,input().split())
lt=[[""]for _ in range(k)]
for i in range(n):
    x=input()
    lt[i%k].append(x)
lt2=[[""]for _ in range(k)]
for i in range(n):
    x=input()
    lt2[i%k].append(x)
ok=True

for i in range(k):
   # print(lt[i])
    if set(lt[i]) != set(lt2[i]):
        ok=False
if ok:
    print("Yes")
else:
    print("No")