#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define sz size
#define f first
#define s second
#define pb push_back
#define er erase
#define in insert
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000000007
#define modul 998244353
#define PI 3.14159265359
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
ll n,m,a[15005],bit[15005];
void update(ll i,ll val){
for(;i<=n;i+=i&(-i)){
    bit[i]=bit[i]+val;
}
}
ll query(ll i){
ll rs=0;
for(;i>=1;i-=i&(-i)){
    rs=rs+bit[i];
}
return rs;
}
int32_t main(){
CODE_START;
ifstream cin("datorii.in");
ofstream cout("datorii.out");
cin>>n>>m;
for(ll i=1;i<=n;i++)
{
    cin>>a[i];
    update(i,a[i]);
}
while(m--){
    ll op,l,r;
    cin>>op>>l>>r;
    if(op==0){
        update(l,-r);
    }else {
    cout<<query(r)-query(l-1)<<endl;
    }
}
}