#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define fast_io ios_base::sync_with_stdio (false) ; cin.tie(0) ; cout.tie(0) ; #define ll long long int #define rep(i,n) for(int i=0; i<(int)(n); i++) #define reps(i,n) for(int i=1; i<=(int)(n); i++) #define REP(i,n) for(int i=n-1; i>=0; i--) #define REPS(i,n) for(int i=n; i>0; i--) #define MOD (long long int)(998244353) #define INF (int)(1e9) #define LINF (long long int)(1e18) #define chmax(a, b) a = (((a)<(b)) ? (b) : (a)) #define chmin(a, b) a = (((a)>(b)) ? (b) : (a)) #define all(v) v.begin(), v.end() typedef pair Pii; typedef pair Pll; ll mpow(ll a, ll b){ if(b==0) return 1; else if(b%2==0){ll memo = mpow(a,b/2); return memo*memo%MOD;} else return mpow(a,b-1) * a % MOD; } ll lpow(ll a, ll b){ if(b==0) return 1; else if(b%2==0){ll memo = lpow(a,b/2); return memo*memo;} else return lpow(a,b-1) * a; } ll gcd(ll a, ll b){ if(b==0) return a; else return gcd(b, a%b); } vector kaijo_memo; ll kaijo(ll n){ if(kaijo_memo.size() > n) return kaijo_memo[n]; if(kaijo_memo.size() == 0) kaijo_memo.push_back(1); while(kaijo_memo.size() <= n) kaijo_memo.push_back(kaijo_memo[kaijo_memo.size()-1] * kaijo_memo.size() % MOD); return kaijo_memo[n]; } vector gyaku_kaijo_memo; ll gyaku_kaijo(ll n){ if(gyaku_kaijo_memo.size() > n) return gyaku_kaijo_memo[n]; if(gyaku_kaijo_memo.size() == 0) gyaku_kaijo_memo.push_back(1); while(gyaku_kaijo_memo.size() <= n) gyaku_kaijo_memo.push_back(gyaku_kaijo_memo[gyaku_kaijo_memo.size()-1] * mpow(gyaku_kaijo_memo.size(), MOD-2) % MOD); return gyaku_kaijo_memo[n]; } ll nCr(ll n, ll r){ if(n == r) return 1;//0個の丸と-1個の棒みたいな時に時に効く?不安. if(n < r || r < 0) return 0; ll ret = 1; if(n <= 1e7){ ret *= kaijo(n); ret %= MOD; ret *= gyaku_kaijo(r); ret %= MOD; ret *= gyaku_kaijo(n-r); ret %= MOD; }else{ rep(i,r){ ret *= n-i; ret %= MOD; ret *= mpow(r-i, MOD-2); ret %= MOD; } } return ret; } int main(void){ fast_io cout<>n>>q; vector A(n),B(q); rep(i,n){ cin>>A[i]; } rep(i,q){ cin>>B[i]; } vector dp(n+1,0); dp[0] = 1; rep(i,n){ vector dp2(n+1,0); rep(j,n+1){ dp2[j] += dp[j] * (A[i] - 1); dp2[j] %= MOD; dp2[j+1] += dp[j] * 1; dp2[j+1] %= MOD; } dp = dp2; } rep(j,q){ cout << dp[B[j]] << endl; } return 0; }