#include <bits/stdc++.h>
using namespace std;
ifstream in("datorii.in");
ofstream out("datorii.out");
const int NMAX = 15000;
int n, m;
int aib[NMAX + 5];
int q, a, b;

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

int query(int a)
{
    int sum = 0;
    for(int i = a; i > 0; i -= i & (-i))
    {
        sum += aib[i];
    }

    return sum;
}

int main()
{
    in >> n >> m;

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

        update(i, x);
    }

    for(int i = 1; i <= m; ++i)
    {
        in >> q >> a >> b;

        if(q == 0)
        {
            update(a, -1 * b);
        }
        else
        {
            int s1 = query(b);
            int s2 = query(a - 1);

            out << s1 - s2 << '\n';
        }
    }
    return 0;
}