import sys
input = sys.stdin.readline

mod=998244353

DP=[[0]*4001 for i in range(4001)]

DP[1][1]=1

for i in range(1,4001):
    for j in range(1,4001):
        if i==1 and j==1:
            continue
        DP[i][j]=(DP[i-1][j-1]+DP[i-j][j])%mod

for i in range(1,4001):
    for j in range(1,4001):
        DP[i][j]=(DP[i][j]+DP[i][j-1])%mod

    
Q=int(input())
for tests in range(Q):
    L=list(map(int,input().split()))

    x,y=L[1],L[2]

    print(DP[x][y])