#include "stdio.h"
int main()
{
    int i,a,b,c,d,tag=0;
	scanf("%d%d%d%d",&a,&b,&c,&d);
	while(a!=-1&&b!=-1&&c!=-1&&d!=-1)
		{
			tag++;
			for(i=d;;i++)
				{
					if(((i-a)%23==0)&&((i-b)%28==0)&&((i-c)%33==0)) break;
				}
			if(i==d) printf("Case %d: the next triple peak occurs in %d days.\n",tag,i+21252);
			else if(i>21252) printf("Case %d: the next triple peak occurs in %d days.\n",tag,i-21252-d);
			else printf("Case %d: the next triple peak occurs in %d days.\n",tag,i-d);
			scanf("%d%d%d%d",&a,&b,&c,&d);	
		}
	return 0;
}