public static int query ( int i , int j ) {
  System . out . println ( "? " + i + " " + j ) ;
  System . out . flush ( ) ;
  return in . nextInt ( ) ;
}

public static int query ( int i , int j ) { System . out . println ( " ? ▁ " + i + " ▁ " + j ) ; System . out . flush ( ) ; return in . nextInt ( ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (binary_expression left: (string_literal) right: (identifier)) right: (string_literal)) right: (identifier))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list))) (return_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))