#include <bits/stdc++.h>
#define ind(x) (x&(-x))

using namespace std;

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

int n,AIB[15100];

void adaug(int poz,int val)
{
    int i;
    for(i=poz;i<=n;i+=ind(i))
        AIB[i]+=val;
}

int suma(int poz)
{
    int i,S=0;
    for(i=poz;i>=1;i-=ind(i))
        S+=AIB[i];
    return S;
}

int m,i,caz,a,b,x;

int main()
{
    f>>n>>m;
    for(i=1;i<=n;i++)
    {
        f>>x;
        adaug(i,x);
    }
    for(i=1;i<=m;i++)
    {
        f>>caz>>a>>b;

        if(caz==0)adaug(a,-b);
        else
        {
            g<<suma(b)-suma(a-1)<<'\n';
        }

    }
    return 0;
}

// CopyRight @DraganAndrei 2019