763. Matrix Restoration

0

Easy

Yash possesses a binary matrix with dimensions n x n. Due to Raj's anger, Yash's matrix was flipped vertically.
Now, Yash requires assistance in restoring his original matrix. He has assigned you the task while he searches for Raj to flip his matrix back.
To restore the original matrix, you must perform the following operations: flip each row of the matrix horizontally, then invert it. Finally, print the resulting matrix.

**Horizontal row flipping**involves reversing each row of the matrix. For instance, flipping [1,1,0,1] horizontally would yield [0,0,1,0].**Matrix inversion**entails replacing each 0 with 1 and each 1 with 0. For example, inverting [0,1,0,0] would result in [1,0,1,1].Input Format

The first line contains an integer n.

The next n lines consist of n space-separated binary digits.

The next n lines consist of n space-separated binary digits.

Output Format

n lines containing n space-separated binary digits.

Example

Input

3
1 1 0
1 0 1
0 0 0

Output

1 0 0
0 1 0
1 1 1

Constraints

n is equal to the length of the matrix.
Each row of the matrix has the same length as n.
1 is less than or equal to n, and n is less than or equal to 20.
Each element in the matrix is either 0 or 1.

Loading...

View Submissions

Console