#include <bits/stdc++.h>
#define indice(x) (x&(-x))
 using namespace std;
 ifstream f("datorii.in");
ofstream g("datorii.out");
 int n,A[15001];
 void adaug(int poz,int val)
{   int i;
    for(i=poz;i<=n;i+=indice(i))
        A[i]+=val;
}
 
int sum(int poz)
{
    int i,sum=0;
    for(i=poz;i>=1;i-=indice(i))
        sum+=A[i];
    return sum;
}
 int m,i,caz,x,a,b;
 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<<sum(b)-sum(a-1)<<'\n';
        }
    }
    return 0;
}