#include <iostream>
#include <fstream>

using namespace std;

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

const int N_MAX = 15000;
int aib[N_MAX + 10];
int n, m;

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

int query(int poz)
{
    int s = 0;

    for(int i = poz; i >= 1; i -= i & -i)
            s += aib[i];

    return s;
}

void scan()
{
    in >> n >> m;

    for(int i = 1; i <= n; i++)
    {
        int x;

        in >> x;

        update(i, x);
    }
}

void solve()
{
    while(m--)
    {
        int p, a, b;

        in >> p >> a >> b;

        if(p == 0)
            update(a, -b);
        else
            out << query(b) - query(a-1) << '\n';
    }
}

int main()
{
    scan();

    solve();

    return 0;
}