import java.io.*;
import java.util.*;
public class Main
{
	public static void main(String args[]) throws Exception
	{
		Scanner cin=new Scanner(System.in);
		int N,a,b,i;
		N=cin.nextInt();
		for(i=0;i<N;i++)
		{
			a=cin.nextInt();
			b=cin.nextInt();
			if(a%2==1&&b%2==1)
			System.out.printf("Scenario #%d:\n%d.41\n\n", i+1,a*b);
			else
			System.out.printf("Scenario #%d:\n%d.00\n\n", i+1,a*b);
		}
	}
}