#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}


struct FastIO{
  FastIO(){
    cin.tie(0);
    ios::sync_with_stdio(0);
  }
}fastio_beet;

//INSERT ABOVE HERE
signed main(){
  int n,q;
  cin>>n>>q;
  vector<int> as(n);
  for(int i=0;i<n;i++) cin>>as[i];

  using ll = long long;
  for(int i=0;i<q;i++){
    int t;
    cin>>t;
    assert(t==1);
    int l,r,x;
    cin>>l>>r>>x;
    l--;
    ll sum=0;
    for(int j=l;j<r;j++)
      sum+=as[j]>x?as[j]-x:0;
    cout<<sum<<"\n";
  }

  cout<<flush;
  return 0;
}