#include <iostream>
#include <algorithm>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;

int op(int a, int b) { return max(a, b); }
int e() { return -1; }
int target;
bool f(int v) { return v < target; }

int main(){
  int N, Q;
  cin >> N >> Q;
  vector<int> A(N, 0);
  for(int i = 0; i < N; i++) cin >> A[i];
  segtree<int, op, e> seg(A);
  for(int q = 0; q < Q; q++){
    int c;
    cin >> c >> target;
    target++;
    if(c == 1){
      auto ret = seg.max_right<f>(0);
      if(ret >= N){
        cout << -1 << endl;
      }else{
        cout << ret + 1 << endl;
        seg.set(ret, 0);
      }
    }
    if(c == 2){
      auto ret = seg.min_left<f>(N);
      ret--;
      if(ret < 0){
        cout << -1 << endl;
      }else{
        cout << ret + 1 << endl;
        seg.set(ret, 0);
      }
    }
  }
  return 0;
}