R, K = map(int, input().split())
H, W = map(int, input().split())

a = [tuple(input()) for _ in [0]*H]
ans = [[0]*(H*K) for _ in [0]*(W*K)]

for _y in range(H*K):
    y = _y//K
    for _x in range(W*K):
        x = _x//K
        ans[_x][_y] = a[y][x]

for i in range(W*K):
    print("".join(ans[i]))