#include #include using namespace std; const int MAXN = 1e6 + 5, Mod = 998244353; int n, ans, dp[MAXN][2][3], a[3] = {4, 0, 4}; string s; int main() { ios::sync_with_stdio(0), cin.tie(0); cin >> s, n = s.size(); s = " " + s, dp[0][0][0] = 1; for (int i = 0; i < n; i++) { for (int f : {0, 1}) { int r = (f ? 9 : s[i + 1] - '0'); for (int u : {0, 1, 2}) { if (!dp[i][f][u]) continue; for (int x = 0; x <= r; x++) { if (x != a[u] || u < 2) (dp[i + 1][(x < r || f)][(x == a[u] ? u + 1 : x == a[0])] += dp[i][f][u]) %= Mod; } } } } for (int f : {0, 1}) { for (int u : {0, 1, 2}) { (ans += dp[n][f][u]) %= Mod; } } cout << (ans + Mod - 1) % Mod; return 0; }