import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int count = 0;
		while(true){
			count ++;
			int p= in.nextInt();
			int e= in.nextInt();
			int i= in.nextInt();
			int d= in.nextInt();
			if(p==-1 && e==-1 && i==-1 && d==-1)  break;  
			int num = (5544*p+14421*e+1288*i-d+21252)%21252;
			if(num==0){
				num = 21252;
			}
			System.out.println("Case "+count+": the next triple peak occurs in "+num+" days.");
		}
	}
}