#include <bits/stdc++.h>
#define N 15005
using namespace std;
ifstream fin("datorii.in");
ofstream fout("datorii.out");
int n,m,a[N],aib[N];
void Update(int poz,int val)
{
    for(int i=poz;i<=n;i+=i&-i)
        aib[i]+=val;
}
int Suma(int poz)
{
    int s=0;
    for(int i=poz;i>0;i-=i&-i)
        s+=aib[i];
    return s;
}
int Query(int x,int y)
{
    return Suma(y)-Suma(x-1);
}
int main()
{
    int i,x,y;
    bool op;
    fin>>n>>m;
    for(i=1;i<=n;i++) fin>>a[i],Update(i,a[i]);
    while(m--)
    {
        fin>>op>>x>>y;
        if(!op) Update(x,-y);
        else fout<<Query(x,y)<<"\n";
    }
    return 0;
}