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

int n, m, arb[15005], x, y, q;

ifstream fin("datorii.in");
ofstream fout("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()
{
    fin >> n >> m;
    for(int i = 1; i <= n; ++i)
    {
        fin >> x;
        Add(x, i);
    }
    for(int i = 1; i <= m; ++i)
    {
        fin >> q >> x >> y;
        if(!q) Add(-y, x);
        else fout << Query(y) - Query(x - 1) << '\n';
    }
}