n,k=map(int,input().split())
a=[list(input()) for i in range(n)]

b=[[0]*(k*n) for i in range(k*n)]

for y in range(k*n):
    for x in range(k*n):
        b[y][x]=a[y//k][x//k]

for i in b:
    print(''.join(i))