#include <bits/stdc++.h>
#define loop(i,a,b) for(int i = a; i <= b; i++)
#define ln '\n'
#define pb push_back
#define ll long long
#define mod 1000000007
#define inf 2e9
#define cin f
#define cout g
using namespace std;
ifstream f("datorii.in");
ofstream g("datorii.out");

int n, m, x, y, z, a[15001], abi[60001];

void build(int node, int left, int right){
    if(left == right){
        abi[node] = a[left];
    }
    else{
        int middle = (left + right) / 2;
        build(node * 2, left, middle);
        build(node * 2 + 1, middle + 1, right);
        abi[node] = abi[2 * node] + abi[2 * node + 1];
    }
}

void update(int node, int left, int right, int position, int val){
    if(left == right){
        abi[node] -= val;
    }
    else{
        int middle = (left + right) / 2;
        if(position <= middle)
            update(node * 2, left, middle, position, val);
        else
            update(node * 2 + 1, middle + 1, right, position, val);
        abi[node] = abi[node * 2] + abi[node * 2 + 1];
    }
}

int query(int node, int left, int right, int x, int y){
    if(x <= left && y >= right){
        return abi[node];
    }
    else{
        int middle = (left + right) / 2;
        if(y <= middle)
            return query(node * 2, left, middle, x, y);
        if(x > middle)
            return query(node * 2 + 1, middle + 1, right, x, y);
        return query(node * 2, left, middle, x, y) + query(node * 2 + 1, middle + 1, right, x, y);
    }

}

int main(){
    cin>>n>>m;
    loop(i,1,n)cin>>a[i];
    build(1, 1, n);
    loop(i,1,m){
        cin>>x>>y>>z;
        if(x == 1)cout<<query(1, 1, n, y, z)<<ln;
        else update(1, 1, n, y, z);
    }
}