#include <fstream>
#define lim 15002
#define zeros(x) ((x^(x-1)&x))
using namespace std;
ifstream fin("datorii.in");
ofstream fout("datorii.out");
int aib[lim],n,m,x,y;
void add(int poz, int val)
{
    for (int i=poz;i<=n;i+=zeros(i))
        aib[i]+=val;
}
int query(int poz)
{
    int s=0;
    for (int i=poz;i>=1;i-=zeros(i))
        s+=aib[i];
    return s;
}
int main()
{
    fin>>n>>m;
    for (int i=1;i<=n;++i)
    {
        fin>>x;
        add(i,x);
    }
    while (m--)
    {
        bool p;
        fin>>p;
        fin>>x>>y;
        if (p==0)
            add(x,-y);
        else
            fout<<query(y)-query(x-1)<<'\n';
    }
    return 0;
}