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

grid = [list(input()) for _ in range(n)]

ans = [["" for j in range(n*k)] for i in range(n*k)]

for i in range(n*k):
    for j in range(n*k):
        ans[i][j] = grid[i//k][j//k]

for i in range(n*k):
    print(''.join(ans[i]))