#include <bits/stdc++.h>
using namespace std;
ifstream in("datorii.in");
ofstream out("datorii.out");
vector <int> arb(400000);
int n, m;
void update(int nod, int st, int dr, int idx, int val)
{
if(st == dr)
{
arb[nod] = val;
return;
}
else
{
int mid = (st+dr) >> 1;
if(idx <= mid)
update(2 * nod, st, mid, idx, val);
else
update(2*nod+1, mid+1, dr, idx, val);
arb[nod] = arb[2*nod] + arb[2*nod+1];
}
}
void update2(int nod, int st, int dr, int idx, int val)
{
if(st == dr)
{
arb[nod]-=val;
return;
}
else
{
int mid = (st+dr) >> 1;
if(idx <= mid)
update2(2 * nod, st, mid, idx, val);
else
update2(2*nod+1, mid+1, dr, idx, val);
arb[nod] = arb[2*nod] + arb[2*nod+1];
}
}
int query(int nod, int st, int dr, int l, int r)
{
if(st >= l && dr <= r)
return arb[nod];
else
{
int mid = (st+dr) >>1;
int stanga=0, dreapta=0;
if(l <= mid)
stanga = query(2*nod, st, mid, l, r);
if(r > mid)
dreapta = query(2*nod+1, mid+1, dr, l, r);
return (stanga + dreapta);
}
}
int main()
{
in>>n>>m;
for(int i=1; i<=n; i++)
{
int x;
in>>x;
update(1, 1, n, i, x);
}
for(int i=1; i<=m; i++)
{
bool operatie;
in>>operatie;
switch(operatie)
{
case 0:
{
int t, v;
in>>t>>v;
update2(1, 1, n, t, v);
break;
}
case 1:
{
int p, q;
in>>p>>q;
out << query(1, 1, n, p, q)<<'\n';
break;
}
}
}
return 0;
}