#include <fstream>
#include <iostream>
#define indice(x) ((x^(x-1))&x)


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

int n,AIB[150001];

int scad (int x,int val)
{
    int i;
    for(i=x; i<=n; i+=indice(i))
        AIB[i]-=val;
}

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


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


int m,i,A,B,x,cerinta,v[150001];
int main()
{
    f>>n>>m;

    for(i=1; i<=n; i++)
      {

          f>>x;
          adaug(i,x);

      }

    for(i=1; i<=m; i++)
    {

        f>>cerinta>>A>>B;
        if(cerinta==0)scad(A,B);
        else g<<suma(B)-suma(A-1)<<'\n';

    }
    return 0;
}