#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("datorii.in");
ofstream fout("datorii.out");
int n,t,v[15005],aib[15005];
void adun(int p,int x){
    for (int i=p;i<=n;i+=i&(-i))
        aib[i]+=x;
}
int suma(int p){
    int s=0;
    for (int i=p;i>=1;i-=i&(-i))
        s+=aib[i];
    return s;
}
int main()
{
    fin>>n>>t;
    for (int i=1;i<=n;i++){
        fin>>v[i];
        adun(i,v[i]);
    }
    for (;t;t--){
        int op;
        fin>>op;
        if (op==1){
            int a,b;
            fin>>a>>b;
            fout<<suma(b)-suma(a-1)<<'\n';
        }
        else {
            int x,p;
            fin>>p>>x;
            adun(p,-x);
        }
    }
    return 0;
}