Problem:
Score : 200 points

Problem Statement

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).

Constraints

1≦H, W≦100

C_{i,j} is either . or *.

Input

The input is given from Standard Input in the following format:

H W
C_{1,1}...C_{1,W}
:
C_{H,1}...C_{H,W}

Output

Print the extended image.

Sample Input 1

2 2
*.
.*

Sample Output 1

*.
*.
.*
.*

Sample Input 2

1 4
***.

Sample Output 2

***.
***.

Sample Input 3

9 20
.....***....***.....
....*...*..*...*....
...*.....**.....*...
...*.....*......*...
....*.....*....*....
.....**..*...**.....
.......*..*.*.......
........**.*........
.........**.........

Sample Output 3

.....***....***.....
.....***....***.....
....*...*..*...*....
....*...*..*...*....
...*.....**.....*...
...*.....**.....*...
...*.....*......*...
...*.....*......*...
....*.....*....*....
....*.....*....*....
.....**..*...**.....
.....**..*...**.....
.......*..*.*.......
.......*..*.*.......
........**.*........
........**.*........
.........**.........
.........**.........

Solution in C++14 (GCC 5.4.1) (judge verdict: Runtime Error)

#include<iostream>
using namespace std;

int main(){
  int H,W;
  cin >> H >>W;
  char C[110][110];
  char D[110][110];
  int d=2*H;
  for(int i=0; i<H; ++i){
    for(int j=0; j<W; ++j){
      cin >>C[i][j];
    }
  }
  for(int i=0;i<H;++i){
    for(int j=0;j<W;++j){
      D[2*i][j]=C[i][j];
      }
    }
  for(int i=0;i<H;++i){
    for(int j=0; j<W; ++j){
    D[2*i+1][j]=C[i][j];
    }
  }

  for(int i=0; i<d; ++i){
    for(int j=0; j<W; ++j){
      cout <<D[i][j];
    }
    	cout<<endl;
    }
}