#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];

void update(int pos, int x)
{
    for(; pos <= n; pos += pos & (-pos))
    {
        aib[pos] += x;
    }
}

int querry(int pos)
{
    int ans = 0;
    for(; pos > 0; pos -= pos & (-pos))
    {
        ans += aib[pos];
    }
    return ans;
}

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)
    {
        int c, x, y;

        in >> c >> x >> y;

        if(c)
        {
            int q1 = querry(y);
            int q2 = querry(x - 1);
            out << q1 - q2 << '\n';
        }
        else
        {
            update(x, -y);
        }
    }
    return 0;
}