Олимпиадный тренинг

Задача 37026. square matrix


Given a number n. Create a two-dimensional array of size nxn and fill it according to the following rule. The numbers 0 should be written on the main diagonal. On the two diagonals adjacent to the main one, the numbers 1. On the next two diagonals, the numbers 2 etc.

Input
The input is a single number n (n<=10).

Imprint
Display the completed matrix.
 
Example
# Input Output
1 5 0 1 2 3 4
1 0 1 2 3
2 1 0 1 2
3 2 1 0 1
4 3 2 1 0