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#include<iostream>
#include<fstream>
using namespace std;
ifstream in("aib.in");
ofstream out("aib.out");
int list[100000];
int n,m,temp,nr;
void op0()
{
in>>temp>>nr;
list[temp]=list[temp]+nr;
}
void op1()
{
list[0]=0;
in>>temp>>nr;
for(int i=temp ; i<=nr;i++)
list[0]+=list[i];
out<<list[0]<<endl;
}
void op2()
{
list[0]=0;
in>>temp;
nr=1;
do
{
list[0]=list[0]+list[nr];
nr++;
}
while(list[0]!=temp && nr<9);
if(list[0]==temp)
{
out<<(nr-1)<<"\n";
}
else
out<<"-1\n";
}
void citire()
{
in>>n>>m;
for(int i=1; i<=n ; i++)
{
in>>list[i];
}
for(int i=0;i<m;i++)
{
in>>temp;
if(temp==0)
{
op0();
}
else if(temp==1)
{
op1();
}
else
op2();
}
}
int main()
{
citire();
cout<<list[5];
return 0;
}
/*
#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
using namespace std;
ifstream in("bfs.in");
ofstream out("bfs.out");
int n,m,ns;
const int nl=100000;
vector <int> muchii[nl];
int dis[nl];
queue <int> coada;
void BFS()
{
int nod,vecin;
while(!coada.empty())
{
nod=coada.front();
coada.pop();
for(unsigned int i= 0; i<muchii[nod].size(); i++)
{
vecin = muchii[nod][i];
if(dis[vecin] == -1)
{
coada.push(vecin);
dis[vecin]=dis[nod]+1;
}
}
}
}
void citire()
{
in>>n>>m>>ns;
for(int i=1;i<=m;i++)
{
int x,y;
in>>x>>y;
muchii[x].push_back(y);
}
for(int i=1;i<=n;i++)
dis[i]=-1;
dis[ns]=0;
coada.push(ns);
BFS();
for(int i=1; i<=n; i++)
out<<dis[i]<<" ";
}
int main()
{
citire();
return 0;
}
*/