import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################
from collections import defaultdict
mod = 998244353
for _ in range(ni()):
    a, b ,c = na()
    print((a * a+b * b + c * c) * pow(c*c, mod-2, mod) % mod)