Create  calculate N x N matrix addition

Problem Description
Write a program to calculate N x N matrix addition

May contain negative number

Every elements in the matrix are integer

N < 10

Input
The input data will contain multiple test cases. Each test case will contain:

N

MatrixA

MatrixB

Output
MatrixC ( C = A + B )

Sample Input
2
0 1
1 0
2 3
4 2
Sample Output
2 4 
5 2