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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("datorii.in");
ofstream fout("datorii.out");
void citire(int &N,int &M,int v[15001])
{
int i;
fin>>N>>M;
for(i=1;i<=N;i++)
{
fin>>v[i];
}
}
void A0(int a[15001])
{
int T,v;
fin>>T>>v;
a[T]=a[T]-v;
}
void B1(int v[15001])
{
int i,S=0,P,Q;
fin>>P>>Q;
for(i=P;i<=Q;i++)
{
S=S+v[i];
}
fout<<S<<"\n";
}
int main()
{
int N,M,v[15001],i,p;
citire(N,M,v);
for(i=1;i<=M;i++)
{
fin>>p;
if(p==0)
{
A0(v);
}
else
{
B1(v);
}
}
return 0;
}