public static void main ( String [ ] args ) {
  Scanner scanner = new Scanner ( System . in ) ;
  String F = scanner . nextLine ( ) , M = scanner . nextLine ( ) , S = scanner . nextLine ( ) ;
  if ( beats ( F , M ) && beats ( F , S ) ) System . out . println ( "F" ) ;
  else if ( beats ( M , S ) && beats ( M , F ) ) System . out . println ( "M" ) ;
  else if ( beats ( S , F ) && beats ( S , M ) ) System . out . println ( "S" ) ;
  else System . out . println ( "?" ) ;
  scanner . close ( ) ;
}

public static void main ( String [ ] args ) { Scanner scanner = new Scanner ( System . in ) ; String F = scanner . nextLine ( ) , M = scanner . nextLine ( ) , S = scanner . nextLine ( ) ; if ( beats ( F , M ) && beats ( F , S ) ) System . out . println ( " F " ) ; else if ( beats ( M , S ) && beats ( M , F ) ) System . out . println ( " M " ) ; else if ( beats ( S , F ) && beats ( S , M ) ) System . out . println ( " S " ) ; else System . out . println ( " ? " ) ; scanner . 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))) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) alternative: (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)))))