#include <bits/stdc++.h>
#define indice(x) (x&(-x))

using namespace std;


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


int n,AIB[15100];

void adaug(int poz,int val)
{
    int i;
    for(i=poz;i<=n;i+=indice(i))
        AIB[i]+=val;
}

int suma(int poz)
{
    int i,suma=0;
    for(i=poz;i>=1;i-=indice(i))
        suma+=AIB[i];
    return suma;
}

int m,i,caz,x,a,b;

int main()
{
    f>>n>>m;
    for(i=1;i<=n;i++)
    {
        f>>x;
        adaug(i,x);
    }
    for(i=1;i<=m;i++)
    {
        f>>caz>>a>>b;
        if(caz==0)
        {
            adaug(a,-b);
        }
        else
        {
            g<<suma(b)-suma(a-1)<<'\n';
        }
    }
    return 0;
}