def main():
    n, k = map(int, input().split())
    a = []
    for i in range(n):
        a.append(input())
    # print(a)
    b = [[]]
    # print(b)
    for i in range(n*k):
        b.append([])
        for j in range(n*k):
            b[-1].append(a[i//k][j//k])
    f = False
    for i in b:
        if f:
            print("")
        f = True
        for j in i:
            print(j, end="")


if __name__ == "__main__":
    main()