#include <stdio.h>
#define MAXN 1000

void main(void)
{
	int p, e, i, d;
	int n[MAXN];
	int j, k;

	k = 1;
	while (1)
	{
		scanf("%d %d %d %d", &p, &e, &i, &d);
		if (p==-1 && e==-1 && i==-1 && d==-1)
			break;
		for (j = 0; j < 645; j++)
		{
			n[k] = 33 * j + i;
			if ((n[k] - p) % 23 != 0)
				continue;
			if ((n[k] - e) % 28 != 0)
				continue;
			if (n[k]==p || n[k]==e || n[k]==i || n[k]==d)
				continue;
			break;
		}
		n[k] -= d;
		k++;
	}
	for (j = 1; j < k; j++)
		printf("Case %d: the next triple peak occurs in %d days.\n", j, n[j]);
}