static void find_set ( int n ) {
  if ( n <= 2 ) {
    System . out . println ( "-1" ) ;
    return ;
  }
  int sum1 = ( n * ( n - 1 ) ) / 2 ;
  int sum2 = n ;
  System . out . println ( sum1 + " " + sum2 ) ;
}

static void find_set ( int n ) { if ( n <= 2 ) { System . out . println ( " - 1" ) ; return ; } int sum1 = ( n * ( n - 1 ) ) / 2 ; int sum2 = n ; System . out . println ( sum1 + " ▁ " + sum2 ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (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: (identifier))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (identifier) right: (string_literal)) right: (identifier)))))))