using
System;using
System.Collections.Generic;using
System.Text;using
System.Collections;namespace
ConsoleApplication1{
class Program{
static void Main(string[] args){
Queue q = new Queue(); int n; do{ n =
int.Parse(Console.ReadLine());q.Enqueue(n);
}
while (n != 0); int sum = 0; while (q.Count != 2){
int a = Convert.ToInt16(q.Dequeue());sum +=
Math.Abs(a-Convert.ToInt16(q.Peek()));}
Console.WriteLine("{0}",sum ); Console.ReadLine();}
}
}
