1 #include <cstdio> 2 #include <cmath> 3  4 using namespace std; 5  6 int main() 7 { 8     int p,e,i,d; 9     int Case=1;10     int lcd = 21252;11     while(scanf("%d%d%d%d",&p,&e,&i,&d),p!=-1)12     {13         int n = (5544*p+14421*e+1288*i)%lcd;14         if(n<=d) n+=lcd;15         printf("Case %d: the next triple peak occurs in %d days.\n",Case,n-d);16         Case++;17     }18     return 0;19 }