POJ 1450

#include <iostream>
using namespace std;

int main()
{
//freopen("acm.acm","r",stdin);
int test;
int r;
int c;
cin>>test;
int time = 0;
while(test --)
{
cin>>r>>c;
cout<<"Scenario #"<<++ time<<":"<<endl;
if(r*c % 2 == 0)
{
cout<<r*c<<".00"<<endl;
}
else
cout<<r*c<<".41"<<endl;
cout<<endl;
}
}