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#include <fstream>
using namespace std;
#define m 666013
ifstream fin("iepuri.in");
ofstream fout("iepuri.out");
int n,t,x,y,z,a,b,c;
long long A[4][4],B[4][4],C[4][4];
int main()
{
fin>>t;
for(int k=1;k<=t;k++)
{
fin>>x>>y>>z>>a>>b>>c>>n;
A[1][1]=A[1][2]=A[2][2]=A[3][1]=B[1][1]=B[1][2]=B[2][2]=B[3][1]=0;
A[1][3]=B[1][3]=a;
A[2][3]=B[2][3]=b;
A[3][3]=B[3][3]=c;
n-=2;
for(int u=1;u<=n;u++)
{
for(int i=1;i<=3;i++)
{
for(int j=1;j<=3;j++)
{
C[i][j]=0;
for(int f=1;f<=3;f++)
{
C[i][j]+=(A[i][f]*B[f][j])%m;
}
}
}
for(int i=1;i<=3;i++)
{
for(int j=1;j<=3;j++)
{
A[i][j]=C[i][j]%m;
}
}
}
fout<<((A[1][3]*z)%m+(A[2][3]*y)%m+(A[3][3]*x)%m)%m<<'\n';
}
fin.close();
fout.close();
return 0;
}