#include <iostream>
#include <fstream>

using namespace std;

ifstream f("iepuri.in");
ofstream g("iepuri.out");

const int P = 666013;

short T, X, Y, Z, A, B, C;
int N;

void prod(int A[3][3], int B[3][3])
{
    int C[3][3] = { { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } };
    for(int i = 0; i < 3; i++)
        for(int j = 0; j < 3; j++)
        {
            for(int k = 0; k < 3; k++)
                C[i][j] += A[i][k] * B[k][j];
        }
    for(int i = 0; i < 3; i++)
        for(int j = 0; j < 3; j++)
            A[i][j] = C[i][j] % P;
}

int putere(int n)
{
    int PUT[3][3] = { { 0, 0 }, { 1, 0 }, { 0, 1 } };
    int M[3][3] = { { 0, 0 }, { 1, 0 }, { 0, 1 } };
    M[0][2] = PUT[0][2] = C;
    M[1][2] = PUT[1][2] = B;
    M[2][2] = PUT[2][2] = A;
    n--;
    while(n)
    {
        if(n % 2 == 0)
        {
            prod(PUT, PUT);
            n /= 2;
        }
        else
        {
            prod(PUT, M);
            n--;
        }
    }
    return (X * PUT[0][2] + Y * PUT[1][2] + Z * PUT[2][2]) % P;
}

int main()
{
    f >> T;
    while(T--)
    {
        f >> X >> Y >> Z >> A >> B >> C >> N;
        g << putere(N - 2) << "\n";
    }
    f.close();
    g.close();
    return 0;
}