#include <iostream>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <random>
#include <stdio.h>
#include <fstream>
#include <functional>
#include <cassert>
#include <unordered_map>
#include <bitset>
#include <chrono>
#include <atcoder/modint>

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>




using namespace std;
using namespace atcoder;
using namespace __gnu_pbds;

using mint = modint1000000007;








#define rep(i,n) for (int i=0;i<n;i+=1)
#define rrep(i,n) for (int i=n-1;i>-1;i--)
#define pb push_back
#define all(x) (x).begin(), (x).end()

#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << " )\n";

template<class T>
using vec = vector<T>;
template<class T>
using vvec = vec<vec<T>>;
template<class T>
using vvvec = vec<vvec<T>>;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;


template<class T>
bool chmin(T &a, T b){
  if (a>b){
    a = b;
    return true;
  }
  return false;
}

template<class T>
bool chmax(T &a, T b){
  if (a<b){
    a = b;
    return true;
  }
  return false;
}

template<class T>
T sum(vec<T> x){
  T res=0;
  for (auto e:x){
    res += e;
  }
  return res;
}

template<class T>
void printv(vec<T> x){
  for (auto e:x){
    cout<<e<<" ";
  }
  cout<<endl;
}



template<class T,class U>
ostream& operator<<(ostream& os, const pair<T,U>& A){
  os << "(" << A.first <<", " << A.second << ")";
  return os;
}

template<class T>
ostream& operator<<(ostream& os, const set<T>& S){
  os << "set{";
  for (auto a:S){
    os << a;
    auto it = S.find(a);
    it++;
    if (it!=S.end()){
      os << ", ";
    }
  }
  os << "}";
  return os;
}

template<class T>
ostream& operator<<(ostream& os, const tuple<T,T,T>& a){
  auto [x,y,z] = a;
  os << "(" << x << ", " << y << ", " << z << ")";
  return os;
}

template<class T>
ostream& operator<<(ostream& os, const map<ll,T>& A){
  os << "map{";
  for (auto e:A){
    os << e.first;
    os << ":";
    os << e.second;
    os << ", ";
  }
  os << "}";
  return os;
}

template<class T>
ostream& operator<<(ostream& os, const vec<T>& A){
  os << "[";
  rep(i,A.size()){
    os << A[i];
    if (i!=A.size()-1){
      os << ", ";
    }
  }
  os << "]" ;
  return os;
}

ostream& operator<<(ostream& os, const mint& a){
  os << a.val();
  return os;
}


void solve(){
  

  int N,Q;
  cin>>N>>Q;
  vec<ll> A(N);
  rep(i,N) cin>>A[i];

  tree<pair<ll,ll>, null_type, less<pair<ll,ll>>, rb_tree_tag, tree_order_statistics_node_update> sorted_val_set;
  set<int> update_idx = {};
  rep(i,N){
    update_idx.insert(i);
  }
  map<int,ll> update_val;
  rep(i,N){
    update_val[i] = A[i];
  }
  rep(i,N){
    sorted_val_set.insert({ll(i),ll(i)});
  }

  int nxt = N;
  while (Q--){
    int t;
    cin>>t;

    if (t == 1){
      int k;ll x;
      cin>>k>>x;
      k--;
      if (!update_idx.count(k)){
        update_idx.insert(k);
      }
      update_val[k] = x;
    }
    else if (t == 2){
      int tmp = 0;
      //debug(update_idx);
      //assert (sorted_val_set.size() == N);
      for (auto i:update_idx){
        auto [val,x] = *sorted_val_set.find_by_order(i-tmp);
        //debug(make_pair(val,x));
        sorted_val_set.erase({val,x});
        tmp++;
        //sorted_val_set.insert({update_val[i],i});
        //for (auto [a,b]:sorted_val_set){
          //cout << a << " " << b << "\n";
        //}
      }
      for (auto i:update_idx){
        sorted_val_set.insert({update_val[i],ll(nxt)});
        nxt++;
      }
      update_idx.clear();
      update_val.clear();
    }
    else{
      int k;
      cin>>k;
      k--;
      if (!update_idx.count(k)){
        auto [val,x] = *sorted_val_set.find_by_order(k);
        cout << val << "\n";
      }
      else{
        cout << update_val[k] << "\n";
      }
    }
  }

  

  
  
  

}




int main(){
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
  cout << fixed << setprecision(15);

  

  int T = 1;
  while (T--){
    solve();
  }
    
}