# include <cstdio>
# include <iostream>
# define nmax 15005
# define zero(x) ( ( x ) & ( -x ))
using namespace std;
int S[nmax],n;
void update(int i,int x)
{
    for (;i<=n;i+=zero(i)) S[i]+=x;
}
int query(int i)
{
    int p(0);
    for (;i;i-=zero(i)) p+=S[i];
    return p;
}
int main(void)
{
    int m,x,y,t;
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    scanf("%d%d\n",&n,&m);
    for (int i=1;i<=n;++i) scanf("%d\n",&x),update(i,x);
    while (m--)
    {
        scanf("%d%d%d",&t,&x,&y);
        if (!t) update(x,-y);
        else printf("%d\n",query(y)-query(x-1));
    }
    return 0;
}