#include <iostream>
#include <algorithm>
#include <iomanip>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>

static const int MOD = 998244353;
using ll = long long;
using u32 = unsigned;
using u64 = unsigned long long;
using namespace std;

template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;

constexpr int ntt_mod = 998244353, ntt_root = 3;
// 1012924417 -> 5, 924844033 -> 5
// 998244353  -> 3, 897581057 -> 3
// 645922817  -> 3;
struct modint_base {};
struct static_modint_base : modint_base {};

template <class T> using is_modint = std::is_base_of<modint_base, T>;
template <class T> using is_modint_t = std::enable_if_t<is_modint<T>::value>;

template <int m, std::enable_if_t<(1 <= m)>* = nullptr>
struct static_modint : static_modint_base {
    using mint = static_modint;

public:
    static constexpr int mod() { return m; }
    static mint raw(int v) {
        mint x;
        x._v = v;
        return x;
    }

    static_modint() : _v(0) {}
    template <class T>
    static_modint(T v) {
        long long x = (long long)(v % (long long)(umod()));
        if (x < 0) x += umod();
        _v = (unsigned int)(x);
    }

    static_modint(bool v) { _v = ((unsigned int)(v) % umod()); }

    unsigned int val() const { return _v; }

    mint& operator++() {
        _v++;
        if (_v == umod()) _v = 0;
        return *this;
    }
    mint& operator--() {
        if (_v == 0) _v = umod();
        _v--;
        return *this;
    }
    mint operator++(int) {
        mint result = *this;
        ++*this;
        return result;
    }
    mint operator--(int) {
        mint result = *this;
        --*this;
        return result;
    }

    mint& operator+=(const mint& rhs) {
        _v += rhs._v;
        if (_v >= umod()) _v -= umod();
        return *this;
    }
    mint& operator-=(const mint& rhs) {
        _v -= rhs._v;
        if (_v >= umod()) _v += umod();
        return *this;
    }
    mint& operator*=(const mint& rhs) {
        unsigned long long z = _v;
        z *= rhs._v;
        _v = (unsigned int)(z % umod());
        return *this;
    }
    mint& operator/=(const mint& rhs) { return *this = *this * rhs.inv(); }

    mint operator+() const { return *this; }
    mint operator-() const { return mint() - *this; }

    mint pow(long long n) const {
        mint x = *this, r = 1;
        while (n) {
            if (n & 1) r *= x;
            x *= x;
            n >>= 1;
        }
        return r;
    }
    mint inv() const {
        return pow(umod() - 2);
    }

    friend mint operator+(const mint& lhs, const mint& rhs) {
        return mint(lhs) += rhs;
    }
    friend mint operator-(const mint& lhs, const mint& rhs) {
        return mint(lhs) -= rhs;
    }
    friend mint operator*(const mint& lhs, const mint& rhs) {
        return mint(lhs) *= rhs;
    }
    friend mint operator/(const mint& lhs, const mint& rhs) {
        return mint(lhs) /= rhs;
    }
    friend bool operator==(const mint& lhs, const mint& rhs) {
        return lhs._v == rhs._v;
    }
    friend bool operator!=(const mint& lhs, const mint& rhs) {
        return lhs._v != rhs._v;
    }

private:
    unsigned int _v;
    static constexpr unsigned int umod() { return m; }
};
using mint = static_modint<998244353>;

class NTT {
    static constexpr int max_base = 20, maxN = 1 << max_base; // N <= 524288 * 2
    mint sum_e[30], sum_ie[30];
public:
    NTT() {
        mint es[30], ies[30];
        int cnt2 = __builtin_ctz(ntt_mod-1);
        mint e = mint(ntt_root).pow((ntt_mod-1) >> cnt2), ie = e.inv();
        for (int i = cnt2; i >= 2; i--){
            es[i-2] = e;
            ies[i-2] = ie;
            e *= e;
            ie *= ie;
        }
        mint now = 1, nowi = 1;
        for (int i = 0; i < cnt2 - 2; i++) {
            sum_e[i] = es[i] * now;
            now *= ies[i];
            sum_ie[i] = ies[i] * nowi;
            nowi *= es[i];
        }
    }

    void transform(vector<mint> &a, int sign){
        const int n = a.size();
        int h = 0;
        while ((1U << h) < (unsigned int)(n)) h++;
        if(!sign){ // fft
            for (int ph = 1; ph <= h; ph++) {
                int w = 1 << (ph-1), p = 1 << (h-ph);
                mint now = 1;
                for (int s = 0; s < w; s++) {
                    int offset = s << (h-ph+1);
                    for (int i = 0; i < p; i++) {
                        auto l = a[i+offset], r = a[i+offset+p]*now;
                        a[i+offset] = l+r;
                        a[i+offset+p] = l-r;
                    }
                    now *= sum_e[__builtin_ctz(~(unsigned int)(s))];
                }
            }
        }else { // ifft
            for (int ph = h; ph >= 1; ph--) {
                int w = 1 << (ph-1), p = 1 << (h-ph);
                mint inow = 1;
                for (int s = 0; s < w; s++) {
                    int offset = s << (h-ph+1);
                    for (int i = 0; i < p; i++) {
                        auto l = a[i+offset], r = a[i+offset+p];
                        a[i+offset] = l+r;
                        a[i+offset+p] = (l-r)*inow;
                    }
                    inow *= sum_ie[__builtin_ctz(~(unsigned int)(s))];
                }
            }
        }
    }
};

NTT ntt;

struct poly {
    vector<mint> v;
    poly() = default;
    explicit poly(int n) : v(n) {};
    explicit poly(vector<mint> vv) : v(std::move(vv)) {};
    int size() const {return (int)v.size(); }
    poly cut(int len){
        if(len < v.size()) v.resize(static_cast<unsigned long>(len));
        return *this;
    }
    inline mint& operator[] (int i) {return v[i]; }
    poly& operator+=(const poly &a) {
        this->v.resize(max(size(), a.size()));
        for (int i = 0; i < a.size(); ++i) this->v[i] += a.v[i];
        return *this;
    }
    poly& operator-=(const poly &a) {
        this->v.resize(max(size(), a.size()));
        for (int i = 0; i < a.size(); ++i) this->v[i] -= a.v[i];
        return *this;
    }

    poly& operator*=(poly a) {
        int N = size()+a.size()-1;
        int sz = 1;
        while(sz < N) sz <<= 1;
        this->v.resize(sz); a.v.resize(sz);
        ntt.transform(this->v, 0); ntt.transform(a.v, 0);
        for(int i = 0; i < sz; ++i) this->v[i] *= a.v[i];
        ntt.transform(this->v, 1);
        this->v.resize(N);
        mint iz = mint(sz).inv();
        for (int i = 0; i < N; i++) this->v[i] *= iz;
        return *this;
    }
    poly& operator/=(const poly &a){ return (*this *= a.inv()); }
    poly operator+(const poly &a) const { return poly(*this) += a; }
    poly operator-(const poly &a) const { return poly(*this) -= a; }
    poly operator*(const poly &a) const { return poly(*this) *= a; }

    poly inv() const {
        int n = size();
        poly r(1);
        r[0] = (this->v[0]).inv();
        int k = 1;
        while(k < n){
            k *= 2;
            poly ff(k);
            for (int i = 0; i < min(k, n); ++i) {
                ff[i] = this->v[i];
            }
            poly nr = (r*r*ff).cut(k);
            for (int i = 0; i < k/2; ++i) {
                nr[i] = (r[i]+r[i]-nr[i]);
                nr[i+k/2] = -nr[i+k/2];
            }
            r = nr;
        }
        r.v.resize(n);
        return r;
    }
};
int main() {
    int n, m;
    cin >> n >> m;
    poly a(n), b(m);
    for (int i = 0; i < n; ++i) {
        int x;
        scanf("%d", &x);
        a[i] = x;
    }
    for (int i = 0; i < m; ++i) {
        int x;
        scanf("%d", &x);
        b[i] = x;
    }
    a *= b;
    for (int i = 0; i < n+m-1; ++i) {
        if(i) printf(" ");
        printf("%d", a[i].val());
    }
    puts("");
    return 0;
}

Measured memory_bytes: 17024