public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  long [ ] a = new long [ 3 ] ;
  a [ 0 ] = sc . nextLong ( ) ;
  a [ 1 ] = sc . nextLong ( ) ;
  a [ 2 ] = sc . nextLong ( ) ;
  long l = sc . nextLong ( ) ;
  long total = ( l + 1 ) * ( l + 2 ) * ( l + 3 ) / 6 ;
  for ( int i = 0 ;
  i < 3 ;
  i ++ ) {
    for ( long la = 0L ;
    la <= l ;
    la ++ ) {
      long x = Math . min ( a [ i ] - a [ ( i + 1 ) % 3 ] - a [ ( i + 2 ) % 3 ] + la , l - la ) ;
      if ( x >= 0 ) {
        total -= ( x + 1 ) * ( x + 2 ) / 2 ;
      }
    }
  }
  System . out . println ( "" + total ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; long [ ] a = new long [ 3 ] ; a [ 0 ] = sc . nextLong ( ) ; a [ 1 ] = sc . nextLong ( ) ; a [ 2 ] = sc . nextLong ( ) ; long l = sc . nextLong ( ) ; long total = ( l + 1 ) * ( l + 2 ) * ( l + 3 ) / 6 ; for ( int i = 0 ; i < 3 ; i ++ ) { for ( long la = 0L ; la <= l ; la ++ ) { long x = Math . min ( a [ i ] - a [ ( i + 1 ) % 3 ] - a [ ( i + 2 ) % 3 ] + la , l - la ) ; if ( x >= 0 ) { total -= ( x + 1 ) * ( x + 2 ) / 2 ; } } } System . out . println ( " " + total ) ; }
(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_creation_expression type: (integral_type) dimensions: (dimensions_expr (decimal_integer_literal))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (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)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (decimal_integer_literal)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))) right: (array_access array: (identifier) index: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)))) right: (identifier)) (binary_expression left: (identifier) right: (identifier)))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (decimal_integer_literal)))))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (string_literal) right: (identifier)))))))