#include <iostream>

#include <cstdio>

#include <string>

#include <cstring>

#include <cmath>

#include <algorithm>

#include <queue>

#define ll long long

using namespace std;

ll C(int n,int m)

{

    ll tmp=1;

    for(int i=0;i<m;++i)

    tmp=tmp*(n-i);

    for(int i=1;i<=m;++i)

    tmp=tmp/i;

    return tmp;

}

int main()

{

    //freopen("data.in","r",stdin);

    int ca=0;

    int n;

    while(cin>>n)

    {

        ++ca;

        if(!n) break;

        cout<<"Case "<<ca<<": ";

        if(n<4||n%2==1)

        cout<<"0"<<endl;

        else

        cout<<C((n+4)/2,4)+C((n+4)/2-1,4)<<endl;

    }

    return 0;

}