public static void main ( String [ ] $ ) {
  int n = gInt ( ) ;
  HashMap < String , String > m = new HashMap < > ( ) ;
  for ( int i : rep ( n ) ) {
    String in = s . next ( ) ;
    String sb = new StringBuilder ( in ) . reverse ( ) . toString ( ) ;
    m . put ( in , sb ) ;
  }
  m . entrySet ( ) . stream ( ) . sorted ( Entry . comparingByValue ( ) ) . map ( Entry :: getKey ) . forEach ( System . out :: println ) ;
}

public static void main ( String [ ] $ ) { int n = gInt ( ) ; HashMap < String , String > m = new HashMap < > ( ) ; for ( int i : rep ( n ) ) { String in = s . next ( ) ; String sb = new StringBuilder ( in ) . reverse ( ) . toString ( ) ; m . put ( in , sb ) ; } m . entrySet ( ) . stream ( ) . sorted ( Entry . comparingByValue ( ) ) . map ( Entry :: getKey ) . forEach ( System . out :: println ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier) (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) arguments: (argument_list)))) (enhanced_for_statement type: (integral_type) name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (method_invocation object: (object_creation_expression type: (type_identifier) arguments: (argument_list (identifier))) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier)))))) (expression_statement (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) name: (identifier) arguments: (argument_list (method_reference (identifier) (identifier)))) name: (identifier) arguments: (argument_list (method_reference (field_access object: (identifier) field: (identifier)) (identifier)))))))