#include <bits/stdc++.h>

using namespace std;

ifstream fin ("datorii.in");
ofstream fout ("datorii.out");

int V[15000];

int main()
{
    int n, m, binar, t, v, p, q, sum=0;
    fin>>n>>m;

    for(int i=1; i<=n; i++)
        fin>>V[i];
    for(int i=1; i<=m; i++)
    {
        fin>>binar;
        if(!binar)
        {
            fin>>t>>v;
            V[t]-=v;
        }
        else
        {
            fin>>p>>q;
            for(int i=p; i<=q; i++)
                sum+=V[i];
            fout<<sum<<"\n";
            sum=0;
        }
    }
    return 0;
}
/*
un client care cumpara un calculator in ziua X (au trecut N zile de la infiintarea magazinului)
ce suma de bani a ramas inca neachitata luand in considerare achizitiile facute de clienti in zilele P, P+1, P+2... Q-1, Q (0 < P ≤ Q ≤ N)


.in
n>>m
v[n]
0/1
case 0 ->t v
case 1 p q
*/