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

ans = []
for i in range(n):
    tmp = []
    for j in range(n):
        for jj in range(k):
            tmp.append(A[i][j])
    for jj in range(k):
        ans.append(tmp)

for i in range(len(ans)):
    print("".join(ans[i]))