import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int p = sc.nextInt();
int e = sc.nextInt();
int i = sc.nextInt();
int d = sc.nextInt();
int ans = d;
while (ans == 0 || (ans - p) % 23 != 0 || (ans - e) % 28 != 0 || (ans - i) % 33 != 0) {
ans++;
}
System.out.println("Case: the next triple peak occurs in " + (ans - d) + " days.");
}
}

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