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Cod sursa(job #274702)
#include<fstream>
using namespace std;
int main()
{
ifstream in("iepuri.in");
ofstream out("iepuri.out");
long t,x,j,y,z,a,b,c,w,i,n;
in>>t;
for (j=1;j<=t;j++)
{in>>x>>y>>z>>a>>b>>c>>n;
w=z*a+y*b+x*c;
x=y;
y=z;
z=w;
if (z>=666013) z=z%666013;
w=z*a+y*b+x*c;
x=y;
y=z;
z=w;
if (z>=666013) z=z%666013;
for (i=1;i<=n-4;i++)
{w=2*w-x*c;
x=y;
y=z;
z=w;
if (z>=666013) z=z%666013;}
out<<z<<endl;}
in.close();
out.close();
return 0;
}