zoj-1037-Gridland

#include<stdio.h>
int main()
{
int n,a,b,i;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d%d",&a,&b);
float m=a*b;
printf("Scenario #%d:\n",i+1);
if(a%2&&b%2)
printf("%.2f\n",m+0.41);
else
printf("%.2f\n",m);
printf("\n");
}
return 0;
}