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