#include<iostream>
#include<vector>
#include<map>
#include<atcoder/modint>
using namespace std;
using namespace atcoder;
using mint = atcoder::modint998244353;
const int MOD = 998244353;
map<long long, mint> mf;
mint f(long long L) {
  if (mf[L] != 0) 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));
  }
  return mf[L] = f(L / 2) + mint(26).pow(L / 2) * f(L / 2);
}
int main() {
  int T;
  cin >> T;
  while (T--) {
    long long L;
    cin >> L;
    cout << f(L).val() << endl;
  }
}