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

const int MOD=666013;

int i,n,t,a[666015],x,y,z;

int main()
{
  ifstream cin("iepuri.in");
  ofstream cout("iepuri.out");

  ios_base::sync_with_stdio(0); cin.tie(0);

  for(cin>>t;t;--t)
  {
    cin>>a[0]>>a[1]>>a[2]>>x>>y>>z>>n; n%=MOD-2;

    for(i=3;i<=n;++i) a[i]=(1LL*a[i-1]*x+a[i-2]*y+a[i-3]*z)%MOD;

    cout<<a[n]<<'\n';
  }

 return 0;
}