public static void main ( String [ ] args ) {
  try {
    Scanner sc = new Scanner ( System . in ) ;
    int n ;
    n = Integer . parseInt ( sc . next ( ) ) ;
    if ( n == 1 ) {
      System . out . println ( "Hello World" ) ;
    }
    if ( n == 2 ) {
      int a , b ;
      a = Integer . parseInt ( sc . next ( ) ) ;
      b = Integer . parseInt ( sc . next ( ) ) ;
      System . out . println ( a + b ) ;
    }
  }
  catch ( Exception e ) {
    System . out . println ( "out" ) ;
  }
}

public static void main ( String [ ] args ) { try { Scanner sc = new Scanner ( System . in ) ; int n ; n = Integer . parseInt ( sc . next ( ) ) ; if ( n == 1 ) { System . out . println ( " Hello ▁ World " ) ; } if ( n == 2 ) { int a , b ; a = Integer . parseInt ( sc . next ( ) ) ; b = Integer . parseInt ( sc . next ( ) ) ; System . out . println ( a + b ) ; } } catch ( Exception e ) { System . out . println ( " out " ) ; } }
(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 (try_statement 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: (integral_type) declarator: (variable_declarator name: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (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)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))))))) (catch_clause (catch_formal_parameter (catch_type (type_identifier)) name: (identifier)) body: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))))))))