#include <bits/stdc++.h>
using namespace std;
ifstream in("datorii.in");
ofstream out("datorii.out");
int n,m,aib[15005];
void update(int p,int x)
{
    for (;p<=n;p+=(p&(-p)))
        aib[p]+=x;
}
int query(int p)
{
    int s=0;
    for (;p>0;p-=(p&(-p)))
        s+=aib[p];
    return s;
}
int main()
{int i,x,y,tip;
    in>>n>>m;
    for (i=1;i<=n;i++)
    {
        in>>x;
        update(i,x);
    }
    for (i=1;i<=m;i++)
    {
        in>>tip>>x>>y;
            if (tip==0)update(x,-y);
            else out<<query(y)-query(x-1)<<"\n";
    }
    out.close();
    in.close();
    return 0;
}