#include<bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353; //1000000007;
using ll=long long;
using pp=pair<ll,ll>;
#define sr string 
#define vc vector
#define fi first
#define se second
#define rep(i,n) for(ll i=0;i<(ll)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
  ll n,q;cin>>n>>q;
  fenwick_tree<ll>fw(n);
  vc<ll>v(n+1,0); rep(i,n)cin>>v[i+1];
  rep(i,n)v[i+1]+=v[i];
  rep(z,q){
    ll t,l,r;cin>>t>>l>>t; l--;
    if(t==1)fw.add(l,r-l-1);
    else{
      l+=fw.sum(0,l);
      r+=fw.sum(0,r);
      ll ans=v[r]-v[l];
      cout<<ans<<"\n";
    }
  }
}