import numpy as np
p=998244353
I=np.loadtxt(open(0),"q",skiprows=1).astype("O").reshape(-1,4,3).T
v=I[:,:3];l=I[:,3:]
T=l*(l-v)[2]-(l-v)*l[2];d=(l-v)[2]
T*=d.prod(0)//d
T-=T[:,2:]
print(*[pow(i*2,-2,p)*2 for i in d.prod(0)]*abs(T[0,0]*T[1,1]-T[1,0]*T[0,1])%p,sep="\n")