public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int [ ] a = {
    1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 };
    int [ ] b = {
      1 , 1 , - 1 , - 1 , 1 , 1 , - 1 , - 1 };
      int [ ] c = {
        1 , - 1 , 1 , - 1 , 1 , - 1 , 1 , - 1 };
        long kati = Long . MIN_VALUE ;
        long tmp = Long . MIN_VALUE ;
        int N = sc . nextInt ( ) ;
        int M = sc . nextInt ( ) ;
        long [ ] x = new long [ N ] ;
        long [ ] y = new long [ N ] ;
        long [ ] z = new long [ N ] ;
        long [ ] maxes = new long [ N ] ;
        for ( int i = 0 ;
        i < N ;
        i ++ ) {
          x [ i ] = sc . nextLong ( ) ;
          y [ i ] = sc . nextLong ( ) ;
          z [ i ] = sc . nextLong ( ) ;
        }
        for ( int i = 0 ;
        i < 8 ;
        i ++ ) {
          tmp = 0 ;
          for ( int j = 0 ;
          j < N ;
          j ++ ) {
            maxes [ j ] = x [ j ] * a [ i ] + y [ j ] * b [ i ] + z [ j ] * c [ i ] ;
          }
          Arrays . sort ( maxes ) ;
          for ( int k = 0 ;
          k < M ;
          k ++ ) {
            tmp += maxes [ N - 1 - k ] ;
          }
          kati = Math . max ( kati , tmp ) ;
        }
        System . out . println ( kati ) ;
      }
      
public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int [ ] a = { 1 , 1 , 1 , 1 , - 1 , - 1 , - 1 , - 1 } ; int [ ] b = { 1 , 1 , - 1 , - 1 , 1 , 1 , - 1 , - 1 } ; int [ ] c = { 1 , - 1 , 1 , - 1 , 1 , - 1 , 1 , - 1 } ; long kati = Long . MIN_VALUE ; long tmp = Long . MIN_VALUE ; int N = sc . nextInt ( ) ; int M = sc . nextInt ( ) ; long [ ] x = new long [ N ] ; long [ ] y = new long [ N ] ; long [ ] z = new long [ N ] ; long [ ] maxes = new long [ N ] ; for ( int i = 0 ; i < N ; i ++ ) { x [ i ] = sc . nextLong ( ) ; y [ i ] = sc . nextLong ( ) ; z [ i ] = sc . nextLong ( ) ; } for ( int i = 0 ; i < 8 ; i ++ ) { tmp = 0 ; for ( int j = 0 ; j < N ; j ++ ) { maxes [ j ] = x [ j ] * a [ i ] + y [ j ] * b [ i ] + z [ j ] * c [ i ] ; } Arrays . sort ( maxes ) ; for ( int k = 0 ; k < M ; k ++ ) { tmp += maxes [ N - 1 - k ] ; } kati = Math . max ( kati , tmp ) ; } System . out . println ( kati ) ; }
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