> #include<iostream>  
> 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;  
>   
>         int lcm=21252; 
>         int n=(5544*p+14421*e+1288*i-d+21252)%21252;  
>         if(n==0)  
>             n=21252;  
>         cout<<"Case "<<time++<<": the next triple peak occurs in "<<n<<" days."<<endl;  
>     }  
>     return 0;  
> }