#include <bits/stdc++.h>
using namespace std;
using ll = long long;
template <class T> using vec = vector<T>;
template <class T> using vvec = vector<vec<T>>;

constexpr ll mod = 998244353;
struct mint {
    ll x;
    mint(ll x=0):x((x%mod+mod)%mod){}
    
    friend ostream &operator<<(ostream& os,const mint& a){
        return os << a.x;
    }

    friend istream &operator>>(istream& is,mint& a){
        ll t;
        is >> t;
        a = mint(t);
        return (is);
    }

    mint& operator+=(const mint a) {
        if ((x += a.x) >= mod) x -= mod;
        return *this;
    }
    mint& operator-=(const mint a) {
        if ((x += mod-a.x) >= mod) x -= mod;
        return *this;
    }
    mint& operator*=(const mint a) {
        (x *= a.x) %= mod;
        return *this;
    }
    mint operator+(const mint a) const {
        mint res(*this);
        return res+=a;
    }
    mint operator-(const mint a) const {
        mint res(*this);
        return res-=a;
    }
    mint operator*(const mint a) const {
        mint res(*this);
        return res*=a;
    }
    mint pow(ll t) const {
        if (!t) return 1;
        mint a = pow(t>>1);
        a *= a;
        if (t&1) a *= *this;
        return a;
    }
    // for prime mod
    mint inv() const {
        return pow(mod-2);
    }
    mint& operator/=(const mint a) {
        return (*this) *= a.inv();
    }
    mint operator/(const mint a) const {
        mint res(*this);
        return res/=a;
    }
    bool operator==(const mint a)const{
        return x==a.x;
    }
};

template<typename Monoid,typename OperatorMonoid,typename F,typename G,typename H>
class LazySegmentTree {
private:
    int sz,height;
    vec<Monoid> data;
    vec<OperatorMonoid> lazy;
    const F op;
    const G homo;
    const H comp;
    const Monoid e;
    const OperatorMonoid Oe;
public:
    LazySegmentTree(int n,const F op,const G homo,const H comp,
                    const Monoid &e,const OperatorMonoid Oe)
        : op(op),homo(homo),comp(comp),e(e),Oe(Oe) {
        sz = 1;
        height = 0;
        while(sz<=n) sz <<= 1,height++;
        data.assign(2*sz,e);
        lazy.assign(2*sz,Oe);
    }

    void set(int k,const Monoid &x) {
        data[k+sz] = x;
    }

    void build() {
        for(int k=sz-1;k>0;k--) {
            data[k] = op(data[2*k], data[2*k+1]);
        }
    }

    inline void propagate(int k) {
        if(lazy[k]!=Oe) {
            lazy[2*k] = comp(lazy[2*k], lazy[k]);
            lazy[2*k+1] = comp(lazy[2*k+1], lazy[k]);
            data[k] = reflect(k);
            lazy[k] = Oe;
        }
    }

    inline Monoid reflect(int k) {
        return lazy[k] == Oe? data[k]:homo(data[k],lazy[k]);
    }

    inline void recalc(int k) {
        while(k>>=1) data[k] = op(reflect(2*k), reflect(2*k+1));
    }

    inline void thrust(int k) {
        for(int i=height;i>0;i--) propagate(k>>i);
    }

    void update(int a, int b, const OperatorMonoid &x) {
        thrust(a+=sz);
        thrust(b+=sz-1);
        for(int l=a,r=b+1;l<r;l>>=1,r>>=1) {
            if(l&1) lazy[l] = comp(lazy[l],x),++l;
            if(r&1) --r, lazy[r] = comp(lazy[r],x);
        }
        recalc(a);
        recalc(b);
    }

    Monoid query(int a, int b) {
        thrust(a+=sz);
        thrust(b+=sz-1);
        Monoid L = e, R = e;
        for(int l=a, r=b+1;l<r;l>>= 1,r>>=1) {
            if(l&1) L = op(L,reflect(l++));
            if(r&1) R = op(reflect(--r),R);
        }
        return op(L,R);
    }

    Monoid operator[](const int &k) {
        return query(k,k+1);
    }
};

using P = pair<mint,mint>;

auto op = [](P a,P b){return (P){a.first+b.first,a.second+b.second};};
auto func = [](P a,P p){return (P) {p.first*a.first+p.second*a.second,a.second};};
auto comp = [](P p,P q){
    return (pair<mint,mint>){p.first*q.first,q.first*p.second+q.second};
};

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N,Q;
    cin >> N >> Q;
    LazySegmentTree seg(N,op,func,comp,(P){0,0},(P){1,0});
    for(int i=0;i<N;i++){
        int a;
        cin >> a;
        seg.set(i,{a,1});
    }
    seg.build();
    while(Q--){
        int t,l,r;
        cin >> t >> l >> r;
        if(t==0){
            int b,c;
            cin >> b >> c;
            seg.update(l,r,{b,c});
        }else if(t==1){
            cout << seg.query(l,r).first << "\n";
        }
    }
}

Measured memory_bytes: 35932