import sys
sys.setrecursionlimit(5*10**5)
input = sys.stdin.readline
from collections import defaultdict, deque, Counter
from heapq import heappop, heappush
from bisect import bisect_left, bisect_right
from math import gcd

n,k = map(int,input().split())
a = [input().rstrip() for i in range(n)]
b = [[""]*(n*k) for i in range(n*k)]
for i in range(n*k):
    for j in range(n*k):
        b[i][j] = a[i//k][j//k]
    print("".join(b[i]))