#include <iostream>
#include <fstream>
using namespace std;
#define MAXDAYS 15000
ifstream in("datorii.in");
ofstream out("datorii.out");
int n,m,owes[MAXDAYS];
void gigel()
{
    in>>n>>m;
    int i;
    for(i=1;i<=n;i++)
    {
        in>>owes[i];
    }
    int x,y,z,j,provisional_sum=0;
    for(i=1;i<=m;i++)
    {
        in>>x;
        if(x==1)
        {
            provisional_sum=0;
            in>>y>>z;
            for(j=y;j<=z;j++)
            {
                provisional_sum+=owes[j];
            }
            out<<provisional_sum<<endl;
        }
            else
            {
                in>>y>>z;
                owes[y]-=z;
            }
    }
}
int main()
{
    gigel();
    return 0;
}