public static void main ( String [ ] args ) {
  Scanner input = new Scanner ( System . in ) ;
  int [ ] a = {
    input . nextInt ( ) , input . nextInt ( ) , input . nextInt ( ) };
    Arrays . sort ( a ) ;
    int res = a [ 2 ] + 1 - a [ 0 ] - a [ 1 ] ;
    System . out . println ( res < 0 ? 0 : res ) ;
  }
  
public static void main ( String [ ] args ) { Scanner input = new Scanner ( System . in ) ; int [ ] a = { input . nextInt ( ) , input . nextInt ( ) , input . nextInt ( ) } ; Arrays . sort ( a ) ; int res = a [ 2 ] + 1 - a [ 0 ] - a [ 1 ] ; System . out . println ( res < 0 ? 0 : res ) ; }
(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: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_initializer (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (decimal_integer_literal)) right: (array_access array: (identifier) index: (decimal_integer_literal))) right: (array_access array: (identifier) index: (decimal_integer_literal))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (ternary_expression condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) consequence: (decimal_integer_literal) alternative: (identifier)))))))