HDU 6754

#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <cmath>
#include <ctime>
#include <cctype>

#include <algorithm>
#include <random>
#include <bitset>
#include <queue>
#include <functional>
#include <set>
#include <map>
#include <vector>
#include <chrono>
#include <iostream>
#include <limits>
#include <numeric>

#define LOG(FMT...) fprintf(stderr, FMT)

using namespace std;

typedef long long ll;
typedef unsigned long long ull;

// mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

template <class T>
istream& operator>>(istream& is, vector<T>& v) {
  for (T& x : v)
    is >> x;
  return is;
}

template <class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
  if (!v.empty()) {
    os << v.front();
    for (int i = 1; i < v.size(); ++i)
      os << ' ' << v[i];
  }
  return os;
}

const int P = 998244353;

int norm(int x) { return x >= P ? (x - P) : x; }

void add(int& x, int y) { if ((x += y) >= P) x -= P; }

void sub(int& x, int y) { if ((x -= y) < 0) x += P; }

void exGcd(int a, int b, int& x, int& y) {
  if (!b) {
    x = 1;
    y = 0;
    return;
  }
  exGcd(b, a % b, y, x);
  y -= a / b * x;
}

int inv(int a) {
  int x, y;
  exGcd(a, P, x, y);
  return norm(x + P);
}

int mpow(int x, int k) {
  int ret = 1;
  while (k) {
    if (k & 1)
      ret = ret * (ll)x % P;
    x = x * (ll)x % P;
    k >>= 1;
  }
  return ret;
}

int main() {
#ifdef ELEGIA
  freopen("test.in", "r", stdin);
  int nol_cl = clock();
#endif
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int T;
  cin >> T;
  while (T--) {
    int n;
    cin >> n;
    int ans;
    if (n <= 3) ans = mpow(26, n);
    else
      ans = 26 * 25 * 24;
    cout << ans << '\n';
  }

#ifdef ELEGIA
  LOG("Time: %dms\n", int ((clock()
          -nol_cl) / (double)CLOCKS_PER_SEC * 1000));
#endif
  return 0;
}