#include using namespace std; const long long MOD = 998244353; int main(){ int N; cin >> N; vector a(N); for (int i = 0; i < N; i++){ cin >> a[i]; } vector> dp(N + 1, vector(N + 1, 0)); dp[0][0] = 1; for (int i = 0; i < N; i++){ int L = 0; for (int j = i - 1; j >= 0; j--){ if (a[j] < a[i]){ L = j + 1; break; } } int R = N; for (int j = i + 1; j < N; j++){ if (a[j] < a[i]){ R = j; break; } } dp[i + 1] = dp[i]; long long sum = 0; for (int j = L; j <= R; j++){ dp[i + 1][j] += sum; dp[i + 1][j] %= MOD; sum += dp[i][j]; } } cout << dp[N][N] << endl; }