#include <iostream>
#include <fstream>
using namespace std;
ifstream f("datorii.in");
ofstream g("datorii.out");

int main()
{
    int n,m,a[15000],b[100000][3],i,s,k;
    f>>n>>m;
    for(i=1;i<=n;++i)
        f>>a[i];
    for(i=1;i<=m;++i)
           {
               f>>b[i][1];
               f>>b[i][2];
               f>>b[i][3];
           }

    for(i=1;i<=m;++i)
        {
            if(b[i][1]==0) a[b[i][2]]=a[b[i][2]]-b[i][3];
                else
                {   s=0;
                    for(k=b[i][2];k<=b[i][3];++k)
                        s+=a[k];
                    g<<s<<endl;
                }
        }
    return 0;
}