#include <iostream>
#include <fstream>
#define zeros(x) ( (x ^ (x - 1)) & x )
using namespace std;
int n,m,x[15100];

void adauga(int r,int a)
{
    for(int i=r;i<=n;i+=zeros(i))
    {
        x[i]+=a;
    }
}

int suma(int p)
{
    int s=0;
    for(int i=p;i>=1;i-=zeros(i))
    {
        s+=x[i];
    }
    return s;
}

int main()
{
    ifstream fin("datorii.in");
    ofstream fout("datorii.out");
    fin>>n>>m;

    for(int i=1;i<=n;i++)
        {
            int a;
            fin>>a;
            adauga(i,a);
        }
    while(m)
    {
        int a,p,q;
        fin>>a>>p>>q;
        if(a==0)
        {
            adauga(p,-q);
        }
        else
        {
            fout<<suma(q)-suma(p-1)<<'\n';
        }
        m--;
    }
    return 0;
}