public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int x = sc . nextInt ( ) ;
  while ( x > 0 ) {
    x = x + 1 ;
    int a = x % 10 ;
    int b = ( x / 10 ) % 10 ;
    int c = ( x / 100 ) % 10 ;
    int d = ( x / 1000 ) % 10 ;
    if ( a != b && a != c && a != d && b != c && b != d && c != d ) {
      break ;
    }
    else continue ;
  }
  System . out . println ( x ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int x = sc . nextInt ( ) ; while ( x > 0 ) { x = x + 1 ; int a = x % 10 ; int b = ( x / 10 ) % 10 ; int c = ( x / 100 ) % 10 ; int d = ( x / 1000 ) % 10 ; if ( a != b && a != c && a != d && b != c && b != d && c != d ) { break ; } else continue ; } System . out . println ( x ) ; }
(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) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (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: (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: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (binary_expression left: (identifier) right: (identifier))) right: (binary_expression left: (identifier) right: (identifier))) right: (binary_expression left: (identifier) right: (identifier))) right: (binary_expression left: (identifier) right: (identifier))) right: (binary_expression left: (identifier) right: (identifier)))) consequence: (block (break_statement)) alternative: (continue_statement)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))