# 解答生成用

def point_shadow(Z, P):
    A, B, C = P
    return Fraction(Z * A, Z - C), Fraction(Z * B, Z - C)

def triangle_area(U, V, W):
    UVx = V[0] - U[0]; UVy = V[1] - U[1]
    UWx = W[0] - U[0]; UWy = W[1] - U[1]
    return abs(UVx * UWy - UVy * UWx) / 2

def solve():
    triangle = [list(map(int, input().split())) for _ in range(3)]
    X, Y, Z = map(int, input().split())

    # 平行移動
    for point in triangle:
        point[0] -= X
        point[1] -= Y

    S = triangle_area(*[point_shadow(Z, point) for point in triangle])
    return S.numerator * pow(S.denominator, -1, Mod) % Mod

#==================================================
from fractions import Fraction

import sys
input = sys.stdin.readline
write = sys.stdout.write

Mod = 998244353

T = int(input())
write("\n".join(map(str, [solve() for _ in range(T)])))