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