using System;
public class Program
{
public static void Main()
sbyte full = 7;
sbyte execute = 1;
sbyte write = 2;
sbyte read = 4;
bool canread = true, canwrite = false, canexecute = true;
var result = full - (0 | (canread ? read : 0) | (canwrite ? write : 0) | (canexecute ? execute : 0));
Console.WriteLine("p is " + result);
}