def fun_main():
    g = [input() for _ in range(n)]

    gg = []
    for i in range(n):
        for _ in range(k):
            gg += [""]
            for j in range(n):
                gg[-1] += g[i][j] * k
    return "\n".join(gg)


n, k = map(int, input().split())
print(fun_main())