static int solve ( int arr [ ] , int n ) {
  Arrays . sort ( arr ) ;
  int a = 0 , b = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( i % 2 != 0 ) a = a * 10 + arr [ i ] ;
    else b = b * 10 + arr [ i ] ;
  }
  return a + b ;
}

static int solve ( int arr [ ] , int n ) { Arrays . sort ( arr ) ; int a = 0 , b = 0 ; for ( int i = 0 ; i < n ; i ++ ) { if ( i % 2 != 0 ) a = a * 10 + arr [ i ] ; else b = b * 10 + arr [ i ] ; } return a + b ; }
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