public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int [ ] A = new int [ 14 ] ;
  for ( int i = 0 ;
  i < 14 ;
  i ++ ) {
    A [ i ] = in . nextInt ( ) ;
  }
  long max = 0 ;
  for ( int from = 0 ;
  from < 14 ;
  from ++ ) {
    int a = A [ from ] ;
    int remains = a / 14 ;
    long score = ( remains % 2 == 0 ) ? remains : 0 ;
    for ( int i = 1 ;
    i < 14 ;
    i ++ ) {
      int count = A [ ( from + i ) % 14 ] + ( a + 14 - i ) / 14 ;
      if ( count % 2 == 0 ) {
        score += count ;
      }
    }
    max = Math . max ( max , score ) ;
  }
  System . out . println ( max ) ;
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int [ ] A = new int [ 14 ] ; for ( int i = 0 ; i < 14 ; i ++ ) { A [ i ] = in . nextInt ( ) ; } long max = 0 ; for ( int from = 0 ; from < 14 ; from ++ ) { int a = A [ from ] ; int remains = a / 14 ; long score = ( remains % 2 == 0 ) ? remains : 0 ; for ( int i = 1 ; i < 14 ; i ++ ) { int count = A [ ( from + i ) % 14 ] + ( a + 14 - i ) / 14 ; if ( count % 2 == 0 ) { score += count ; } } max = Math . max ( max , score ) ; } System . out . println ( max ) ; }
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