#include<fstream>
using namespace std;
int a[15005], n, m, x, y, op, s, i2, i;
void build(int poz, int val)
{
    for(i2=poz; i2<=n; i2+=(i2&(-i2)))
        a[i2]+=val;
}
void update(int poz, int val)
{
    for(i2=poz; i2<=n; i2+=(i2&(-i2)))
        a[i2]-=val;
}
int query(int poz)
{
    s=0;
    for(i2=poz; i2>0; i2-=(i2&(-i2)))
        s+=a[i2];
    return s;
}
ifstream in("datorii.in");
ofstream out("datorii.out");
int main()
{
    in>>n>>m;
    for(i=1; i<=n; i++)
    {
        in>>x;
        build(i, x);
    }
    for(;m--;)
    {
        in>>op>>x>>y;
        if(op==0)
        {
            update(x, y);
            continue;
        }
        out<<query(y)-query(x-1)<<"\n";
    }
}