#include<bits/stdc++.h>
using namespace std;

#define x first
#define y second 
#define Yes cout << "Yes\n"
#define No cout << "No\n"
#define YES cout << "YES\n"
#define NO cout << "NO\n"
#define ls u << 1
#define rs u << 1 | 1
#define all(x) x.begin(),x.end()
#define i128 __int128
#define int long long
#define Genshin_Impact return
#define Starts 0
#define _o_o_ return
#define o_o_o return

inline int gcd(int a, int b) {return b > 0 ? gcd(b, a % b) : a;}
inline int lowbit(int x) {return x & (-x);}
int qmi(int a, int b, int mod){int res = 1;while(b) {if(b & 1) res = res * a % mod;a = a * a % mod;b >>= 1;}return res;}
// inline i128 read(){i128 x = 0, f = 1;char ch = getchar();while(ch < '0' || ch > '9'){if(ch == '-')f = -1;ch = getchar();}while(ch >= '0' && ch <= '9'){x = x * 10 + ch - '0';ch = getchar();}return x * f;}
// inline void print(i128 x){if(x < 0){putchar('-');x = -x;}if(x > 9)print(x / 10);putchar(x % 10 + '0');}

typedef long long ll;
typedef pair<int, int> PII;
typedef pair<double, PII> PIII;



const int N = 5e5 + 10, logn = 21, inf = 1e18, mod = 998244353, M = 2e6 + 10;
const int P = 131;
#define ull unsigned long long

int a[N];

void solve()
{
    // 总和相等，差值越小越大
    for(int i = 1; i <= 9; i ++) cin >> a[i];
    a[10] = 0;
    // 差值越小1乘积越大
    // 搞出一堆2出来即可
    // 2 * 11肯定小于3 * 10
    // x * 4 * 2 // x * 9
    // x * 9 * 2 // x * 16
    // 如果有2先变3
    // 可以枚举多少个2变3
    // 如果有多出的1，那就变2
    if(a[2] >= a[1]) {
        a[3] += a[1];
        a[2] -= a[1];
        a[1] = 0;
    }
    else {
        a[3] += a[2];
        a[1] -= a[2];
        a[2] = 0;
        a[3] += a[1] / 3;
        a[1] %= 3;
        if(a[1] == 2) a[2] ++;
        else {
            for(int i = 2; i <= 9; i ++)
                if(a[i] > 0 && a[1] > 0) {
                    a[i + 1] ++;
                    a[i] --;
                    break;
                }
        }
    }
    int res = 1;
    // for(int i = 1; i <= 10; i ++) cout << a[i] << ' ';
    for(int i = 2; i <= 10; i ++)
        for(int j = 1; j <= a[i]; j ++)
            res = res * i % mod;
    cout << res << '\n';
}

signed main()
{
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    int t = 1;
    cin >> t;
    while (t--)
        solve();
    Genshin_Impact Starts;
}