#include <fstream>

using namespace std;
ifstream fin("iepuri.in");
ofstream fout("iepuri.out");
int main()
{
    long long X,Y,Z,A,B,C,N,t,i;
    fin>>X>>Y>>Z>>A>>B>>C>>N;

    for(i=3;i<=N;i++)
    {
        t=(A*Z+B*Y+C*X)%666013;
        X=Y;
        Y=Z;
        Z=t;
    }
    fout<<t;
    return 0;
}