#include<stdio.h>

int main()
{
    int N = 0;
    scanf("%d",&N);

    for(int i=0; i<N; ++i)
    {
       	int Gender = 0, height = 0, weight = 0, age = 0;
       	scanf("%d %d %d %d",&Gender, &age, &height, &weight);

        double BMR = 0;
       	if(Gender == 0)
       	{
        	BMR = (double)(9.6*weight + 1.8*height - 4.7*age + 655);
       	}
      	else if(Gender == 1)
      	{
      		BMR = (double)(13.7*weight + 5*height - 6.8*age + 66);
       	}

        printf("%.2f\n",BMR);
    }
    
    return 0;
}