/**************************************************************
    User: error408
    Language: C/C++
    School: SSDUT
    Saying: Do one thing at a time,and do well.
****************************************************************/
#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <algorithm>
#include <cstdio>
#include <string>
#include <cstring>
#include <cmath>
#include <ctime>
using namespace std;

#define clr(s,x) memset((s),(x),sizeof(s))
#define lson l,m,rt<<1
#define rson m+1,r,rt<<1|1
#define lowbit(x) (x&(-x))
#define PB push_back
#define For(i,a,b) for(int i=a;i<b;i++)
#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define RL(N) scanf("%I64d",&N)
#define RLL(L,R) (RL(L),RL(R))

typedef long long               LL;
typedef unsigned int            uint;
typedef unsigned long long      ULL;
typedef vector<int>             vint;
typedef vector<string>          vstring;

/************************************END DEFINE*********************************************/

const int maxn = 1e6 + 1000;
const LL mod = 1000000007LL;
LL dp[maxn];

int main()
{
    int t,cas = 1;
    cin>>t;
    clr(dp,0);
    dp[1] = 1;
    dp[2] = 2;
    for(int i=3;i<=maxn-1;i++){
        dp[i] = (dp[i-1]+(i-1)*dp[i-2])%mod;
    }
    while(t--){
        int n;
        scanf("%d",&n);
        printf("Case #%d:\n",cas++);
        printf("%I64d\n",dp[n]);
    }
    return 0;
}