public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  String a = in . next ( ) ;
  String b = in . next ( ) ;
  String c = in . next ( ) ;
  fun ( a , b , c , "F" ) ;
  fun ( b , a , c , "M" ) ;
  fun ( c , a , b , "S" ) ;
  if ( flag == false ) System . out . println ( "?" ) ;
  in . close ( ) ;
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; String a = in . next ( ) ; String b = in . next ( ) ; String c = in . next ( ) ; fun ( a , b , c , " F " ) ; fun ( b , a , c , " M " ) ; fun ( c , a , b , " S " ) ; if ( flag == false ) System . out . println ( " ? " ) ; in . close ( ) ; }
(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: (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: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier) (identifier) (string_literal)))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier) (identifier) (string_literal)))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier) (identifier) (string_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (false))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))