#include <stdio.h>

void main(void) {
	int p,e,i,d,n = 0,days;
	scanf("%d %d %d %d",&p,&e,&i,&d);
	while(p != -1 && e != -1 && i != -1 && d !=-1) {
		n++;
		while((p != e) || (p != i)) {
			if(p < e) {
				p += 23;
			}
			else if(e < i){
				e += 28;
			}
			else {
				i += 33;
			}
		}
		days = p - d;
		if(days <= 0) {
			days += 21252;
		}
		printf("Case %d: the next triple peak occurs in %d days.\n",n,days);
		scanf("%d %d %d %d",&p,&e,&i,&d);
	}
}
自己的机器没有问题，这里怎么会wa啊？

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