#include <iostream>
using namespace std;
int main() {
const int n = 6 ;
int a[n][n];
for ( size_t i = 0 ; i <n ; i++){
for ( size_t j = 0 ; j < n ; j++){
a[i][j] = i ;
cout << a[i][j] << " " ;
}
cout << endl ;
}
int k , x = (n-1) , y = 0 ;
for ( size_t i = 0 ; i <= n/2-1; i++){
for ( size_t j = 0 ; j < n ; j++){
k = a[i][j];
a[i][j] = a[x][y];
a[x][y] = k ;
y = y + 1 ;
}
x = x - 1 ;
y = 0 ;
}
cout << "-------------------------" << endl ;
for ( size_t i = 0 ; i <n ; i++){
for ( size_t j = 0 ; j < n ; j++){
cout << a[i][j] << " " ;
}
cout << endl ;
}
return 0;
}
