n = int(input())

for i in range (n):

g, a, h, w = map(int, input().split())

#男

if (g == 1):

BMR = (13.7 * w) + (5.0 * h) - (6.8 * a) + 66

print(f"{BMR:.2f}")

#女

elif (g == 0):

BMR = (9.6 * w) + (1.8 * h) - (4.7 * a) + 655

print(f"{BMR:.2f}")