There is an image with a height of H pixels and a width of W pixels. Each of the pixels is represented by either `.` or `*`. The character representing the pixel at the i-th row from the top and the j-th column from the left, is denoted by C_{i,j}.  Extend this image vertically so that its height is doubled. That is, print a image with a height of 2H pixels and a width of W pixels where the pixel at the i-th row and j-th column is equal to C_{(i+1)/2,j} (the result of division is rounded down).
H,W = map(int,input().split())
c = []
for i in range(H):
	array = list(input().strip())
	c.append(array)
ans = []
for i in c:
  ans.append(i)
  ans.append(i)
print(ans)
H,W = map(int,input().split())
c = []
for i in range(H):
	array = input().strip()
	c.append(array)
ans = []
for i in c:
  ans.append(i)
  ans.append(i)
print(*ans,sep = '\n')