#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define llint long long #define inf 1e18 #define rep(x, s, t) for(llint (x) = (s); (x) < (t); (x)++) #define Rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++) #define chmin(x, y) (x) = min((x), (y)) #define chmax(x, y) (x) = max((x), (y)) #define eps 1e-9 #define mod 998244353 using namespace std; typedef pair P; llint n, Q; llint a[6005]; llint dp[2][6005]; int main(void) { ios::sync_with_stdio(0); cin.tie(0); cin >> n >> Q; for(int i = 1; i <= n; i++) cin >> a[i]; dp[0][0] = 1; for(int i = 0; i < n; i++){ for(int j = 0; j <= n; j++) dp[(i+1)%2][j] = 0; for(int j = 0; j <= n; j++){ dp[(i+1)%2][j] += dp[i%2][j] * (a[i+1]-1) % mod, dp[(i+1)%2][j] %= mod; if(j+1 <= n) dp[(i+1)%2][j+1] += dp[i%2][j], dp[(i+1)%2][j+1] %= mod; } } llint b; for(int i = 1; i <= Q; i++){ cin >> b; cout << dp[n%2][b] << endl; } return 0; }