#include<iostream>
#include<list>
using namespace std;
int main()
{
    int a,b,c,d,i=1;
	list< int > v;
	while(true)
	{
		cin>>a>>b>>c>>d;
		
		if(a==-1) break;
		v.push_back(a%23);
		v.push_back(b%28);
		v.push_back(c%33);
		v.push_back(d);
	}
    while(!v.empty())
	{
		
		a=v.front();
		v.pop_front();
		b=v.front();
		v.pop_front();
		c=v.front();
         v.pop_front();
		d=v.front();
		v.pop_front();
		int e=d;
		while(true)
		{
			
			d=d+1;
			if((d-a)%23==0&&(d-b)%28==0&&(d-c)%33==0)
				break;
		}
		cout<<"Case "<<i<<": the next triple peak occurs in"<<d-e<<"day."<<endl;
		i=i+1;
	}
	return 0;
            

}