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

using ll=long long;
using ldub=long double;
using lldub=__float128;
using str=string;

using mint=modint;

template<class T=ll>
using tup2=tuple<T,T>;
template<class T=ll>
using tup3=tuple<T,T,T>;
template<class T=ll>
using tup4=tuple<T,T,T,T>;
template<class T=ll>
using tup5=tuple<T,T,T,T,T>;
template<class T=ll>
using tup6=tuple<T,T,T,T,T,T>;
template<class T=ll>
using tup7=tuple<T,T,T,T,T,T,T>;

template<class T=ll>
using vec=vector<T>;
template<class T=ll>
using vec2=vector<vec<T>>;
template<class T=ll>
using vec3=vector<vec2<T>>;
template<class T=ll>
using vec4=vector<vec3<T>>;
template<class T=ll>
using vec5=vector<vec4<T>>;
template<class T=ll>
using vec6=vector<vec5<T>>;

template<class T>
using que=queue<T>;
template<class T>
using Pque=priority_queue<T>;
template<class T>
using pque=priority_queue<T, vector<T>, greater<T>>;

struct Edge{
  ll from,to,w=1,num=-1;
};
using gvec=vector<Edge>;
using gvec2=vector<gvec>;

template<class T>
bool chmax(T &a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T>
bool chmin(T &a,T b){if(b<a){a=b;return 1;}return 0;}

#define pb push_back
#define pf push_front
#define pob pop_back
#define pof pop_front
#define ins insert
#define tup make_tuple
#define low lower_bound
#define pops(a) __builtin_popcountll(a)
#define ctz(a) __builtin_ctzll(a)
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define nperm(v) next_permutation(all(v))
#define Yes cout << "Yes" << endl
#define No cout << "No" << endl
#define YN(f) cout << ((f)?"Yes":"No") << endl

const int IINF=2e9;
const ll INF=4e18;

#ifndef LOCAL
#define debug(x)
#endif




// =================================================




mint modpow(mint v,ll e){
  mint res=1;
  while(e){
    if(e&1) res*=v;
    v*=v,e>>=1;
  }
  return res;
}

void solve(){
  ll A,B,C,X,Y,Z;
  cin >> A >> B >> C >> X >> Y >> Z;
  ll a=(A-1)/Y,x=(X-1)/B;
  mint e=0;
  if(C<=Z){
    if(a>x) e+=1-(mint)1/modpow(10,a-x);
    e+=mint(1)/modpow(10,abs(a-x))/11;
  }
  if(C>=Z){
    x--;
    if(a>x) e+=1-(mint)1/modpow(10,a-x);
    e+=mint(1)/modpow(10,abs(a-x))/11;
    x++;
  }
  if(C==Z) e/=2;
  cout << e.val() << endl;
}

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  mint::set_mod(998244353);
  // mint::set_mod(1000000007);

  ll T=1;
  cin >> T;
  while(T--) solve();
  return 0;
}