static boolean isDivBySix ( String str , int n ) {
  int sum = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    sum += ( int ) ( str . charAt ( i ) - 'a' + 1 ) ;
  }
  if ( sum % 3 != 0 ) return false ;
  int lastDigit = ( ( int ) ( str . charAt ( n - 1 ) - 'a' + 1 ) ) % 10 ;
  if ( lastDigit % 2 != 0 ) return false ;
  return true ;
}

static boolean isDivBySix ( String str , int n ) { int sum = 0 ; for ( int i = 0 ; i < n ; i ++ ) { sum += ( int ) ( str . charAt ( i ) - ' a ' + 1 ) ; } if ( sum % 3 != 0 ) return false ; int lastDigit = ( ( int ) ( str . charAt ( n - 1 ) - ' a ' + 1 ) ) % 10 ; if ( lastDigit % 2 != 0 ) return false ; return true ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal)) right: (decimal_integer_literal)))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (return_statement (false))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (character_literal)) right: (decimal_integer_literal))))) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (return_statement (false))) (return_statement (true))))