#include <iostream>
#include <fstream>
#define last(x) (x&-x)
using namespace std;


int n,m;
int aib[15001];
void adaug(int index,int val)
{
    for(;index<=n;index+=last(index))
        aib[index]+=val;
}
int suma(int index)
{
    int s;
    for(s=0;index;index-=last(index))
        s+=aib[index];
    return s;
}



int main()
{
    ifstream f("datorii.in");
    ofstream g("datorii.out");
    f>>n>>m;
    for(int i=1;i<=n;i++)
    {
        int a;
        f>>a;
        adaug(i,a);
    }
    for(int i=1;i<=m;i++)
    {
        int t,a,b;
        f>>t>>a>>b;
        if(t)
            g<<suma(b)-suma(a-1)<<'\n';
        else
            adaug(a,-b);
    }

    return 0;
}