#include<iostream>
#include<vector>
#include<map>
using namespace std;
const int MOD = 998244353;
map<long long, long long> mf, mg;
//26^N
long long g(long long N) {
  if (mg[N]) return mg[N];
  if (N == 0) return 1;
  if (N == 1) return 26;
  if (N % 2 == 1) {
    return mg[N] = (26 * g(N - 1)) % MOD;
  }
  long long tmp = g(N / 2);
  return mg[N] = tmp * tmp % MOD;
}
long long f(long long L) {
  if (mf[L]) return mf[L];
  if (L == 0) return 0;
  if (L == 1) return 26;
  if (L % 2 == 1) {
    return mf[L] = (26 + 26 * f(L - 1)) % MOD;
  }
  return mf[L] = (f(L / 2) + g(L / 2) * f(L / 2) % MOD) % MOD;
}
int main() {
  int T;
  cin >> T;
  while (T--) {
    long long L;
    cin >> L;
    cout << f(L) << endl;
  }
}