#include <bits/stdc++.h>   using namespace std;   const long long P = 998244353LL;   const int N_MAX = 1e5 + 15;   int A[N_MAX];   int main() {     int n;     cin >> n;     for (int i = 0; i < n; i++) cin >> A[i];     long long ans = 0LL;     bool rem = 1;     long long q = 1LL;     while (rem) {       long long t = 0LL;       for (int i = 0; i < n; i++) {         t += (1LL * (A[i] % 10));         A[i] /= 10;         if (A[i] == 0) rem = 0;       }       t *= q;       t %= P;       q *= 100LL;       q %= P;       ans += t;       ans %= P;     }     ans *= 11LL;     ans %= P;     ans *= n;     ans %= P;     cout << ans << endl;     return 0;   }   