#include <bits/stdc++.h>

using namespace std;
ifstream fin("datorii.in");
ofstream fout("datorii.out");
int n,m,a,b,val,c,aib[15005],s[15005];
void adun(int x, int val)
{
    int i;
    for(i=x;i<=n;i+=i&(-i))
        aib[i]+=val;
}
void scad(int x, int val)
{
    int i;
    for(i=x;i<=n;i+=i&(-i))
        aib[i]-=val;
}
int sum(int x)
{
    int i;
    int s=0;
    for(i=x;i>=1;i-=i&(-i))
        s+=aib[i];
    return s;
}
int main()
{

    fin>>n>>m;
    for(int i=1;i<=n;i++)
    {
        fin>>val;
        adun(i,val);
    }
    for(int i=1;i<=m;i++)
    {
        fin>>c>>a>>b;
        if(c==0)
        {
            scad(a,b);
        }
        else fout<<sum(b)-sum(a-1)<<'\n';
    }
    return 0;
}