import sys, time, random
from collections import deque, Counter, defaultdict
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 61 - 1
mod = 998244353

n, k = mi()
a = [input() for _ in range(n)]

b = [[None] * (n * k) for _ in range(n * k)]

for i in range(n * k):
    for j in range(n * k):
        b[i][j] = a[i//k][j//k]
        
for i in range(n * k):
    print(''.join(b[i]))