#include <fstream>

using namespace std;

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

int aib[15005];
int n,x,y,c,m;
int suma(int x)
{
    int s=0;
    for (int i= x;i>0;i-=(i&-i))
        s+= aib[i];
    return s;
}

void adaugavaloare(int x,int val)
{
   for (int i=x;i<=n;i+=(i&-i))
       aib[i]+=val;
}

int main()
{
    in >>n>>m;

    for (int i=1;i<=n;i++)
    {
        in>>x;
        adaugavaloare(i,x);
    }

    for (int i=1;i<=m;i++)
    {
        in >> c >> x >> y;
        if (c==0){
            adaugavaloare(x,-y);
        }
        else
            out << (suma(y)-suma(x-1)) <<"\n";
    }
    return 0;
}