#include <bits/stdc++.h>
using namespace std;
ifstream fin("datorii.in");
ofstream fout("datorii.out");
#define lsb(i) (i & (-i))
const int NMAX = 15005;
int n, m, aib[NMAX];

void update(int poz, int val)
{
    for(int i = poz; i <= n; i += lsb(i))
        aib[i] += val;
}

int query(int st, int dr)
{
    int sum = 0;
    for(int i = dr; i >= 1; i -= lsb(i))
        sum += aib[i];
    for(int i = st - 1; i >= 1; i -= lsb(i))
        sum -= aib[i];
    return sum;
}

signed main()
{
    fin >> n >> m;
    for(int i = 1; i <= n; i++)
    {
        int val;
        fin >> val;
        update(i, val);
    }

    while(m--)
    {
        int op, a, b;
        fin >> op >> a >> b;
        if(op == 0)
            update(a, -b);
        else
            fout << query(a, b) << "\n";
    }

    return 0;
}