ACM2304 http://acm.pku.cn/JudgeOnline/problem?id=2304

#include<iostream>
using namespace std;

int main()
{
int a , b , c , d , sum;

while(cin>>a>>b>>c>>d )
{
   sum = 0;
   if(!a && !b && !c && !d)
    return 0;

   sum += 1080;

   if( a > b)
    sum += (a - b) * 9;
   else
    sum += 360 - (b - a) * 9 ;
   if(b < c )
   
    sum += (c - b) * 9;
   else
    sum += 360 - (b - c) *9;
   if(c > d)
    sum += (c - d ) * 9;
   else
    sum += 360 - (d - c) * 9;


   cout<<sum<<endl;
}
return 0;
}