#include <fstream>
#include <iostream>
#define zero(x) ((x ^ (x - 1)) & x)
using namespace std;

int n, m, arb[15005];
ifstream f("datorii.in");
ofstream g("datorii.out");

void Add(int val, int poz)
{
    for(int i = poz; i <= n; i += zero(i))
        arb[i] += val;
}

int Query(int poz)
{
    int s = 0;
    for(int i = poz; i >= 1; i -= zero(i))
        s += arb[i];
    return s;
}

int main()
{
    int x, y, q;
    f >> n >> m;
    for(int i = 1; i <= n; ++i)
    {
        f >> x;
        Add(x, i);
    }
    for(int i = 1; i <= m; ++i)
    {
        f >> q >> x >> y;
        if(!q) Add(-y, x);
        else g << Query(y) - Query(x - 1) << '\n';
    }
}