static boolean isDivisible ( String s , int m ) {
  Map < Character , Integer > mp = new HashMap < > ( ) ;
  for ( int i = 0 ;
  i < DIGITS ;
  i ++ ) {
    mp . put ( CHARS [ i ] , i ) ;
  }
  int r = 0 ;
  for ( int i = 0 ;
  i < s . length ( ) ;
  i ++ ) {
    r = ( r * 16 + mp . get ( s . charAt ( i ) ) ) % m ;
  }
  if ( r == 0 ) return true ;
  return false ;
}

static boolean isDivisible ( String s , int m ) { Map < Character , Integer > mp = new HashMap < > ( ) ; for ( int i = 0 ; i < DIGITS ; i ++ ) { mp . put ( CHARS [ i ] , i ) ; } int r = 0 ; for ( int i = 0 ; i < s . length ( ) ; i ++ ) { r = ( r * 16 + mp . get ( s . charAt ( i ) ) ) % m ; } if ( r == 0 ) return true ; return false ; }
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