n,k = map(int, input().split())
S = [list(input()) for _ in range(n)]
T = [["" for j in range(n*k)]for i in range(n*k)]

for i in range(n*k):
    for j in range(n*k):
        T[i][j] = S[i//k][j//k]

for i in range(n*k):
    print("".join(T[i]))