#include <bits/stdc++.h>
using namespace std;
//#pragma GCC optimize(3)
#define DB double
#define LL long long
#define ULL unsigned long long
#define in128 __int128
#define cint const int
#define cLL const LL
#define For(z,e1,e2) for(int z=(e1);z<=(e2);z++)
#define Rof(z,e1,e2) for(int z=(e2);z>=(e1);z--)
#define For_(z,e1,e2) for(int z=(e1);z<(e2);z++)
#define Rof_(z,e1,e2) for(int z=(e2);z>(e1);z--)
#define inint(e) scanf("%d",&e)
#define inll(e) scanf("%lld",&e)
#define inpr(e1,e2) scanf("%d%d",&e1,&e2)
#define in3(e1,e2,e3) scanf("%d%d%d",&e1,&e2,&e3)
#define outint(e) printf("%d\n",e)
#define outint_(e) printf("%d%c",e," \n"[i==n])
#define outint2_(e,e1,e2) printf("%d%c",e," \n"[(e1)==(e2)])
#define outll(e) printf("%lld\n",e)
#define outll_(e) printf("%lld%c",e," \n"[i==n])
#define outll2_(e,e1,e2) printf("%lld%c",e," \n"[(e1)==(e2)])
#define exc(e) if(e) continue
#define stop(e) if(e) break
#define ret(e) if(e) return
#define ll(e) (1ll*(e))
#define pb push_back
#define ft first
#define sc second
#define clean(e) while(!e.empty()) e.pop()
#define all(ev) ev.begin(),ev.end()
#define sz(ev) ((int)ev.size())
#define debug(x) printf("%s=%d\n",#x,x)
#define x0 _x0_
#define y1 _y1_
#define ffo fflush(stdout)
cLL mod=998244353,G=404;
template <typename Type> void get_min(Type &w1,const Type w2) { if(w2<w1) w1=w2; }
template <typename Type> void get_max(Type &w1,const Type w2) { if(w2>w1) w1=w2; }
template <typename Type> Type up_div(Type w1,Type w2) { return (w1/w2+(w1%w2?1:0)); }
template <typename Type> Type gcd(Type X_,Type Y_) { Type R_=X_%Y_; while(R_) { X_=Y_; Y_=R_; R_=X_%Y_; } return Y_; }
template <typename Type> Type lcm(Type X_,Type Y_) { return (X_/gcd(X_,Y_)*Y_); }
template <typename Type> Type md(Type w1,const Type w2=mod) { w1%=w2; if(w1<0) w1+=w2; return w1; }
template <typename Type> Type md_(Type w1,const Type w2=mod) { w1%=w2; if(w1<=0) w1+=w2; return w1; }
void ex_gcd(LL &X_,LL &Y_,LL A_,LL B_)
{ if(!B_) { X_=1ll; Y_=0ll; return ; } ex_gcd(Y_,X_,B_,A_%B_); X_=md(X_,B_); Y_=(1ll-X_*A_)/B_; }
LL inv(LL A_,LL B_=mod) { LL X_=0ll,Y_=0ll; ex_gcd(X_,Y_,A_,B_); return X_; }
template <typename Type> void add(Type &w1,const Type w2,const Type M_=mod) { w1=md(w1+w2,M_); }
void mul(LL &w1,cLL w2,cLL M_=mod) { w1=md(w1*md(w2,M_),M_); }
template <typename Type> Type pw(Type X_,Type Y_,Type M_=mod) { Type S_=1; while(Y_) { if(Y_&1) mul(S_,X_,M_); Y_>>=1; mul(X_,X_,M_); } return S_; }
mt19937 gen(time(NULL)); int rd() { return abs((int)gen()); }
cint N=1.02e5;
int n,Q;
vector <pair<int,pair<LL,LL> > > q[N];
vector <int> v[N];
array <LL,2> a[N];
struct Node
{
    int l,r,mid;
    LL ls,rs,sum,sum2,lcnt;
}t[N<<2];
void bld(int p,int l,int r)
{
    int mid=l+r>>1;
    t[p]={l,r,mid,0ll,0ll,0ll,0ll,0ll};
    ret(l>=r);
    bld(p<<1,l,mid),bld(p<<1|1,mid+1,r);
}
LL ans[N];
bool vis[N],b[N];
int K;
void setf(int p,int k)
{
    if(vis[k])
        t[p].ls=t[p].rs=t[p].sum=0ll;
    else
    {
        if(b[k]) t[p].rs=a[k][0],t[p].sum=a[k][0]*a[k][1];
        else t[p].ls=a[k][0];
    }
    vis[k]=!vis[k];
}
LL work(int p,LL c)
{
    if(!c) return 0ll;
    // printf("work [%d,%d]:%lld,%lld\n",t[p].l,t[p].r,t[p].lcnt,c);
    if(t[p].l>=t[p].r) return c*a[t[p].l][1];
    if(c<=t[p].lcnt) return work(p<<1,c);
    else return (work(p<<1|1,c-t[p].lcnt)+t[p].sum2);
}
pair <array <LL,2>,LL> sum(int p1,int p2)
{
    if(t[p2].ls>=t[p1].rs) return {{t[p1].ls+(t[p2].ls-t[p1].rs),t[p2].rs},t[p2].sum};
    return {{t[p1].ls,t[p2].rs+(t[p1].rs-t[p2].ls)},t[p2].sum+work(p1,t[p1].rs-t[p2].ls)};
}
void pup(int p)
{
    t[p].sum2=work(p<<1,t[p].lcnt=max(t[p<<1].rs-t[p<<1|1].ls,0ll));
    auto w=sum(p<<1,p<<1|1);
    t[p].ls=w.ft[0],t[p].rs=w.ft[1],t[p].sum=w.sc;
}
void change(int p)
{
    if(t[p].l>=t[p].r)
    {
        setf(p,K);
        return ;
    }
    change(p<<1|(K>t[p].mid));
    pup(p);
}
void Change(int k)
{
    K=k;
    change(1);
}
int L,R;
vector <int> g;
void qry(int p)
{
    if(L<=t[p].l&&t[p].r<=R)
    {
        g.pb(p);
        return ;
    }
    if(L<=t[p].mid) qry(p<<1);
    if(R>t[p].mid) qry(p<<1|1);
}
deque <pair<int,LL> > st;
LL Qry(int k,LL c)
{
    if(!c) return 0ll;
    // printf("\nquery %d,%lld\n",k,c);
    L=1,R=k,g.clear();
    qry(1);
    st.clear();
    LL sum=0ll;
    for(auto i:g)
    {
        // printf("ck %d:[%d,%d](%lld,%lld)\n",i,t[i].l,t[i].r,t[i].ls,t[i].rs);
        LL w=t[i].ls;
        while(!st.empty()&&w>=st.front().sc)
            w-=st.front().sc,st.pop_back();
        if(!st.empty()) st.front().sc-=w;
        st.pb({i,t[i].rs});
    }
    for(auto [p,c2]:st)
    {
        get_min(c2,c); c=max(0ll,c-c2);
        // printf("[%d,%d]:%lld(%lld)\n",t[p].l,t[p].r,c2,t[p].rs);
        sum+=work(p,c2);
    }
    return sum;
}
void print(int p)
{
    // printf("print %d:[%d,%d] %lld(%lld)&%lld\n",p,t[p].l,t[p].r,t[p].ls,t[p].lcnt,t[p].rs);
    ret(t[p].l>=t[p].r);
    print(p<<1),print(p<<1|1);
}
void main_solve()
{
    inpr(n,Q);
    int opt;
    For(i,1,Q)
    {
        inint(opt);
        if(opt==3)
        {
            int k; LL l,r;
            scanf("%d%lld%lld",&k,&l,&r);
            q[k].pb({i,{l,r}});
        }
        else
        {
            int l,r; inpr(l,r);
            v[l].pb(i),v[r+1].pb(i);
            if(opt==1)
            {
                LL c,w; scanf("%lld%lld",&c,&w);
                a[i]={c,w};
            }
            else
            {
                LL c; scanf("%lld",&c);
                a[i]={c,0ll};
            }
            b[i]=(opt==1);
        }
    }
    bld(1,1,Q);
    memset(ans,0xff,(Q+1)*sizeof(LL));
    For(i,1,n)
    {
        // printf("\ni=%d\n",i);
        for(auto j:v[i]) Change(j);
        for(auto [id,c]:q[i])
            ans[id]=Qry(id,c.sc)-Qry(id,c.ft-1ll);
    }
    For(i,1,Q) if(ans[i]!=-1ll)
        outll(ans[i]);
}
int main()
{
    // ios::sync_with_stdio(0); cin.tie(0);
    // freopen("in.txt","r",stdin);
    // freopen("out1.txt","w",stdout);
    // rsand(time(NULL));
    // main_init();
    // int _; inint(_); For(__,1,_) // T>1 ?
        // printf("\n------------\n\n"),
        main_solve();
    return 0;
}
/*
2 2 2 1 1
*/