#include "stdio.h"
int main()
{
     int a,b,c,d,e=1;
     while (scanf("%d %d %d %d",&a,&b,&c,&d)!=EOF&a!=-1)
     {
	  printf("Case %d: the next triple peak occurs in %d days.\n",e++,(a*5544+b*14421+c*1288-d+21252)%21252!=0?(a*5544+b*14421+c*1288-d+21252)%21252:21252);
     }
     return 0;
}