#include <bits/stdc++.h>
#include <atcoder/segtree>
using namespace std;
using ll = long long;
#define rep(i,n) for (int i=0;i<(int)(n);i++)

struct S{
  ll val;
  ll sz;
};
S op(S a,S b){
  return {a.val+b.val,a.sz+b.sz};
}
S e(){
  return {0,0};
}

int main(){
  int n,q;
  cin>>n>>q;
  vector<vector<int>> p(n+q);
  rep(i,n){
    int a;
    cin>>a;
    p.at(i)={a,2,i};
  }
  rep(i,q){
    int t,l,r,x;
    cin>>t>>l>>r>>x;
    l--;
    p.at(n+i)={x,1,l,r,i};
  }
  sort(p.begin(),p.end(),greater<vector<int>>());
  atcoder::segtree<S,op,e> seg(n);
  vector<ll> ans(q);
  for(auto &v:p){
    if(v.at(1)==1){
      S s=seg.prod(v.at(2),v.at(3));
      ans.at(v.at(4))=s.val-s.sz*v.at(0);
    }else{
      seg.set(v.at(2),{v.at(0),1});
    }
  }
  rep(i,q) cout<<ans.at(i)<<'\n';
}