#include <fstream>
#include <iostream>
using namespace std;

int n,m;

inline int bit(int x)
{
    return ((x&(x-1))^x);
}

int aib[15003];

void update(int x,int y)
{
    int i;
    for(i=x;i<=n;i+=bit(i))
    aib[i]+=y;
}

int querry(int x)
{
    int sum=0,i;
    for(i=x;i>0;i-=bit(i))
    sum+=aib[i];
    return sum;
}
int main()
{
    int i,op,x,y;
    ifstream in("datorii.in");
    ofstream out("datorii.out");
    in>>n>>m;
    for(i=1;i<=n;i++)
    {
        in>>x;
        if(x!=0)
        update(i,x);
    }
    for(i=0;i<m;i++)
    {
        in>>op>>x>>y;
        if(op==1)
            out<<querry(y)-querry(x-1)<<'\n';
        else update(x,-y);
    }
    in.close(),out.close();
    return 0;
}