N,K=map(int,input().split())
A=[]
for i in range(N):
    A.append(input())
ans=[[] for _ in range(N*K)]
for i in range(N*K):
    for j in range(N*K):
        ans[i].append(A[i//K][j//K])
for a in ans:
    print(''.join(a))