public static void main ( String [ ] args ) {
  int p [ ] [ ] = {
    {
      1 , 2 }, {
        1 , 5 }, {
          1 , 15 }, {
            2 , 10 }
          };
          int n = p . length ;
          System . out . print ( NotParallel ( p , n ) ) ;
        }
        
public static void main ( String [ ] args ) { int p [ ] [ ] = { { 1 , 2 } , { 1 , 5 } , { 1 , 15 } , { 2 , 10 } } ; int n = p . length ; System . out . print ( NotParallel ( p , n ) ) ; }
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