import sys


def input():
    return sys.stdin.readline().strip()


def main():
    n, k = map(int, input().split())
    a = [input() for _ in range(n)]
    b = [input() for _ in range(n)]

    for i in range(k):
        z = set()
        q = set()
        for x in range(i, n, k):
            z.add(a[x])
            q.add(b[x])
        if z != q:
            print("No")
            return
    print("Yes")


if __name__ == "__main__":
    main()