#include<iostream>#include<cstring>#include<cstdio>#include<algorithm>using namespace std;int a[5],m[5],n,d;void e_gcd(int a,int b,int &x,int &y){    if(!b)    {        x = 1;        y = 0;        return;    }    e_gcd(b,a%b,x,y);    int temp = x;    x = y;    y = temp-a/b*y;}int CRT(){    int M = 1,ans = 0;    for(int i = 1;i <= n;i++)   M *= m[i];    for(int i = 1;i <= n;i++)    {        int x,y,Mi = M/m[i];        e_gcd(Mi,m[i],x,y);        ans = (ans+Mi*x*a[i])%M;    }    if(ans < 0) ans += M;    return ans;}int main(){    n = 3;    m[1] = 23;    m[2] = 28;    m[3] = 33;    int cnt = 1;    while(scanf("%d%d%d%d",&a[1],&a[2],&a[3],&d))    {        if(a[1] == -1 && a[2] == -1 && a[3] == -1 && d == -1)   break;        int ans = CRT();        if(ans <= d)    ans += 21252;        ans -= d;        printf("Case %d: the next triple peak occurs in %d days.\n",cnt++,ans);    }    return 0;}