#include <iostream>
#include <fstream>

using namespace std;

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

#define zeros(x) ((x ^ (x - 1)) & x )
#define NMAX 15000

int aib[NMAX+1], n;

void update(int index, int val){
    for(int i=index; i<=n; i+= zeros(i))
        aib[i] += val;
}

int s(int index){
    int s = 0;
    for(int i=index; i>=1; i-= zeros(i))
        s += aib[i];
    return s;
}

int main()
{
    int m, k;
    fin >> n >> m;
    for(int i=1; i<=n; i++){
        fin >> k;
        update(i, k);
    }

    int t, index, val;
    for(int i=1; i<=m; i++){
        fin >> t >> index >> val;
        if(!t)
            update(index, -val);
        else
            fout << s(val) - s(index-1) << "\n";
    }

    return 0;
}