public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int p , x , y ;
  p = sc . nextInt ( ) ;
  x = sc . nextInt ( ) ;
  y = sc . nextInt ( ) ;
  int i = ( x / 50 ) % 475 ;
  int k = - 1 ;
  for ( int j = x ;
  j >= y ;
  j -- ) {
    if ( isPresent ( j , p ) && ( x - j ) % 50 == 0 ) {
      k = j ;
      break ;
    }
  };
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int p , x , y ; p = sc . nextInt ( ) ; x = sc . nextInt ( ) ; y = sc . nextInt ( ) ; int i = ( x / 50 ) % 475 ; int k = - 1 ; for ( int j = x ; j >= y ; j -- ) { if ( isPresent ( j , p ) && ( x - j ) % 50 == 0 ) { k = j ; break ; } } ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (unary_expression operand: (decimal_integer_literal)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))) right: (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (decimal_integer_literal)) right: (decimal_integer_literal)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))) (break_statement)))))))