"""
入力 validation の提出. RE にはならず、 WA になることを期待している
"""
import sys
readline = sys.stdin.readline

MAX = 10 ** 9

T = int(readline())
for _ in range(T):
    N,a,b,c,d,e,f = map(int, readline().split())
    assert 0 <= a <= b <= MAX
    assert 0 <= c <= d <= MAX
    assert 0 <= e <= f <= MAX
    assert 0 < b
    assert 0 < d
    assert 0 < f
    
    den = b * d * f
    num = a * d * f + b * c * f + b * d * e
    assert num == den