#include <iostream>
#include <fstream>

using namespace std;

ifstream fin("datorii.in");
ofstream fout("datorii.out");

int a[40005], v[15001];

void create(int n, int st, int dr)
{
    if(st == dr){a[n] = v[st];return;}
    create(n*2, st, (st + dr)/2);
    create(n*2+1, (st + dr)/2 + 1, dr);
    a[n] = a[n*2] + a[n*2+1];
}

int suma(int n, int st, int dr, int x, int y)
{

    if(dr < x || st > y)
        return 0;

    if(x <= st && dr <= y)
        return a[n];

    return suma(n*2, st, (st + dr)/2, x, y) + suma(n*2+1, (st + dr)/2+1, dr, x, y);
}

void update(int n, int st, int dr, int poz, int x)
{
    if(poz < st || poz > dr)
        return;
    if(st == dr)
    {
        a[n] -= x;
        return;
    }

    update(2*n, st, (st + dr)/2, poz, x);
    update(2*n + 1, (st + dr)/2 + 1, dr, poz, x);

    a[n] = a[2*n] + a[2*n+1];
}

int main()
{
    int n, m, op, x, y;
    fin>>n>>m;
    for(int i = 1; i <= n; i++)
        fin>>v[i];

    create(1, 1, n);

    for(int i = 0; i < m; i++)
    {
        fin>>op>>x>>y;
        if(op)
            fout<<suma(1, 1, n, x, y)<<"\n";
        else
            update(1, 1, n, x, y);
    }

    return 0;
}