#line 1 "yukicoder-0117.test.cpp"
#define PROBLEM "https://yukicoder.me/problems/no/117"

#line 1 "/home/sakflat/CP/_library/cpp/template/template.cpp"
//yukicoder@cpp17

#include <iostream>

#include <cmath>
#include <algorithm>

#include <iomanip>

#include <string>
#include <vector>
#include <set>
#include <stack>
#include <queue>
#include <map>

#include <bitset>

#include <complex>

#include <cctype>
#include <utility>
#include <climits>

#include <numeric>

using namespace std;
using ll = long long;
using P = pair<ll,ll>;

const ll MOD = 998244353;
const ll MODx = 1000000007;
const int INF = (1<<30)-1;
const ll LINF = (1LL<<62LL)-1;
const double EPS = (1e-10);

P ar4[4] = {{0,1},{0,-1},{1,0},{-1,0}};
P ar8[8] = {{-1,-1},{-1,0},{-1,1},{0,-1},{0,1},{1,-1},{1,0},{1,1}};




template <typename T> vector<T> make_vector(size_t a, T b) { return vector<T>(a, b); }
template <typename... Ts> auto make_vector(size_t a, Ts... ts) { return vector<decltype(make_vector(ts...))>(a, make_vector(ts...)); }
 
 /*
確認ポイント
cout << fixed << setprecision(n) << 小数計算//n桁の小数表記になる

計算量は変わらないが楽できるシリーズ
min(max)_element(iter,iter)で一番小さい(大きい)値のポインタが帰ってくる
count(iter,iter,int)でintがiterからiterの間にいくつあったかを取得できる
*/

/*
function corner below
*/


/*
Function corner above
*/

/* comment outed because can cause bugs
__attribute__((constructor))
void initial() {
 cin.tie(0);
 ios::sync_with_stdio(false);
}
*/
#line 1 "/home/sakflat/CP/_library/cpp/math/combination.cpp"
template <int mod>
struct Combination {
  long long n_max;
  vector<long long> fac, inv, finv;
  Combination(int n):n_max(n), fac(n+1,1), inv(n+1,1), finv(n+1,1){
    for(int i = 2; n > i; i++){
      fac[i] = (fac[i-1]*i)%mod;
      inv[i] = mod-((inv[mod%i]*(mod/i))%mod);
      finv[i] = (finv[i-1]*inv[i])%mod;
    }
  }

  long long C(int n, int r){
    if(n < r)return 0;
    if(n > n_max)return 0;
    return (((fac[n]*finv[r])%mod)*finv[n-r])%mod;
  }

  long long P(int n, int r){
    if(n < r)return 0;
    if(n > n_max)return 0;
    return (fac[n]*finv[n-r])%mod;
  }

  long long H(int n, int r){
    return C(n+r-1, r);
  }
};
using comb = Combination<MOD>;
#line 5 "yukicoder-0117.test.cpp"

using comb2 = Combination<MODx>;

int main(){
  comb2 C(2000010);
  int q;cin>>q;
  char _;
  for(int i = 0; q > i; i++){
    char c;cin>>c>>_;
    int a,b;cin>>a>>_>>b>>_;
    if(c == 'C')cout << C.C(a,b) << endl;
    else if(c == 'P')cout << C.P(a,b) << endl;
    else cout << C.H(a,b) << endl;
  }
}