public static void main ( String [ ] args ) {
  int arr1 [ ] [ ] = {
    {
      1 , 2 , 3 , 4 }, {
        5 , 6 , 7 , 8 }, {
          9 , 7 , 4 , 2 }, {
            2 , 2 , 2 , 1 }
          };
          System . out . print ( productDiagonals ( arr1 , 4 ) + "\n" ) ;
          int arr2 [ ] [ ] = {
            {
              2 , 1 , 2 , 1 , 2 }, {
                1 , 2 , 1 , 2 , 1 }, {
                  2 , 1 , 2 , 1 , 2 }, {
                    1 , 2 , 1 , 2 , 1 }, {
                      2 , 1 , 2 , 1 , 2 }
                    };
                    System . out . print ( productDiagonals ( arr2 , 5 ) + "\n" ) ;
                  }
                  
public static void main ( String [ ] args ) { int arr1 [ ] [ ] = { { 1 , 2 , 3 , 4 } , { 5 , 6 , 7 , 8 } , { 9 , 7 , 4 , 2 } , { 2 , 2 , 2 , 1 } } ; System . out . print ( productDiagonals ( arr1 , 4 ) + " \n " ) ; int arr2 [ ] [ ] = { { 2 , 1 , 2 , 1 , 2 } , { 1 , 2 , 1 , 2 , 1 } , { 2 , 1 , 2 , 1 , 2 } , { 1 , 2 , 1 , 2 , 1 } , { 2 , 1 , 2 , 1 , 2 } } ; System . out . print ( productDiagonals ( arr2 , 5 ) + " \n " ) ; }
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