Help me in solving PUPPYGM problem

in this problem this code get accepted but
include
using namespace std;
define ll long long int
int main() {
int t;
cin>>t;
while(t–){
ll a,b;
cin>>a>>b;
if(a%2==0 || b%2==0)
{
cout<<“Tuzik”<<endl;
}
else
{
cout<<“Vanka”<<endl;
}

}
return 0;

}

if i choose 7 5
then
7 5 ← tuzik turn
/
/
3 4 2 3 ← these will be the tuzik choice
/ \ /
/ \ /
2 2 1 2 1 2 1 1<-here tuzik loss
/ \ / /
/ \ 1 1 1 1<- here tuzik wins
1 1 1 1<-here also tuzik wins
but according to code tuzik lost but we found a way such that tuzik can win

can some one please explain me what i did wrong in understding

@yugraj123
U miss understood the game.
to each turn u have to eat one set completely , and then split the other set.