#include <iostream>
#include <vector>
#include <fstream>

using namespace std;

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

int n;
int bit[100010];

void update (int i, int val)
{
    while (i <= n)
    {
        bit[i] += val;
        i += (i & -i);
    }
}
int ps(int i)
{
    int sum = 0;
    while (i > 0)
    {
        sum += bit[i];
        i -= (i & -i);
    }
    return sum;
}
int rangeSum(int i, int j){
    return ps(j) - ps(i - 1);
}

int main ()
{
    
    int m, i;
    in >> n >> m;
    for (i = 1; i <= n; i++)
    {
        int x;
        in >> x;
        update(i, x);
    }
    for (i = 1; i <= m; i++)
    {
        int q;
        in >> q;
        if (q == 0){
            int t, v;
            in >> t >> v;
            update(t, -v);
        }
        else {
            int p, r;
            in >> p >> r;
            out << rangeSum(p, r) << "\n";
        }
    }
}