public class Unit601_AV {

         public static void main(String[] args) {

               int[][] att = { {1, 2, 3, 4, 5}, {0, 2, 3, 4, 5}, {0, 0, 3, 4, 5},  {0, 0, 0, 4, 5}, {0, 0, 0, 0, 5}  };
               mirrorDiaganol(att);
              //to do: code to print the array.
           	for (int row  = 0; row<att.length; row++){
        		for (int col = 0; col<att[1].length; col++){
        			System.out.print(att[att.length][att[1].length]);
        		}
        		System.out.println();
           	}
        }

        public static void mirrorDiaganol(int[][] arr) {
          // to do:
        	int x = 1;
        	for (int row  = 0; row<arr.length; row++){
        		for (int col = 0; col<arr[1].length; col++){
        			if ((arr[arr.length][arr[1].length]) == 0){
        				arr[arr.length][arr[1].length] = x;
        			}
        		}
        		x++;
        	}
       }

   }