using namespace std;
int main()
{
int T,A,B,N,C,D;
cin>>T;
int arra[T];
int arrb[T];
int arrn[T];
int arrc[T];
int arrd[T];
for (int i = 0; i < T; i++)
{
cin>>arra[i]>>arrb[i]>>arrn[i];
}
for (int i = 0; i < T; i++)
{
while(arrn[i]>0)
{
arrc[i] = arra[i]*2;
arrn[i]β;
if(arrn[i]>0)
{
arrd[i] = arrb[i]*2;
arrn[i]β;
}
}
}
for (int i = 0; i < T; i++)
{
if(arrc[i]>arrd[i])
{
cout<<arrc[i]/arrd[i]<<endl;
}
else
{
cout<<arrd[i]/arrc[i]<<endl;
}
}
return 0;
}