> #include<iostream>
> #include<math.h>
> #include<vector>
> using namespace std;
> int main()
> {
> 	int p,e,i,d;
> 	int time=1;
> 	while(cin>>p>>e>>i>>d)
> 	{
> 		if(p==-1&&e==-1&&i==-1&&d==-1)
> 		{
> 			break;
> 		}
> 		if(d<0||d>=365)
> 		{
> 			break;
> 		}
> 		int m;
> 		
> 		for(m=d;m<=21252;m++)
> 		{
> 			if(p==0&&e==0&&i==0&&d==0)
> 			{
> 				cout<<"case "<<time<<": the next triple peak occurs in "<<21252<<“ days."<<endl;
> 				time++;
> 				break;
> 			}
> 			if((m+d-p)%23==0&&(m+d-e)%28==0&&(m+d-i)%33==0)
> 			{
> 				cout<<"case "<<time<<": the next triple peak occurs in "<<m<<" days."<<endl;
> 				time++;
> 				break;
> 			}
> 		}
> 	}
> 	return 0;
> }