public static void main ( String [ ] args ) {
  int a = sc . nextInt ( ) ;
  int b = sc . nextInt ( ) ;
  if ( a < 0 ) a ++ ;
  if ( b < 0 ) b ++ ;
  System . out . println ( b - a ) ;
}

public static void main ( String [ ] args ) { int a = sc . nextInt ( ) ; int b = sc . nextInt ( ) ; if ( a < 0 ) a ++ ; if ( b < 0 ) b ++ ; System . out . println ( b - a ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (expression_statement (update_expression (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (expression_statement (update_expression (identifier)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))))))