#include<bits/stdc++.h>
using namespace std;


int main()
{
    int t,cas,i,j,k,n,banaitehbe;
    cin>>t;
    for(cas=1;cas<=t;cas++)
    {
        cin>>n>>banaitehbe;
        int value[n+5],dp[banaitehbe+5];
        for(i=0;i<n;i++)
        {
            cin>>value[i];
        }
        memset(dp,0,sizeof(dp));
        dp[0]=1;
        for(i=0;i<n;i++)
        {
            for(j=value[i];j<=banaitehbe;j++)
            {
                dp[j]=(dp[j]+dp[j-value[i]])%100000007;
            }
        }
        cout<<"Case "<<cas<<": "<<dp[banaitehbe]<<endl;
    }
    return 0;
}