#include <bits/stdc++.h>
using namespace std;
#define int long long
int aib[15005];
int v[15005];
int n, m;
void update(int i, int val){
    while(i <= n){
        aib[i] += val;
        i += i&-i;
    }
}
int query(int i){
    int ret = 0;
    while(i){
        ret += aib[i];
        i -= i&-i;
    }
    return ret;
}
signed main()
{
    cin >> n >> m;
    for(int i = 1; i <= n; i++){
        cin >> v[i];
        update(i, v[i]);
    }
    int cer, x, y;
    for(int i = 0; i < m; i++){
        cin >> cer >> x >> y;
        if(cer == 0){
            update(x, -y);
        }
        else{
            cout << query(y) - query(x-1) << '\n';
        }
    }
    return 0;
}