n, k = map(int, input().split())
s = [input() for _ in range(n)]
t = [input() for _ in range(n)]
for i in range(k):
    st1 = set()
    st2 = set()
    for j in range(i, n, k):
        st1.add(s[j])
        st2.add(t[j])
    if st1 != st2:
        print('No')
        break
else:
    print('Yes')