//#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define ll long long
#define rep(i, n) for (ll i = 0; i < (ll)(n); i++)
#define all(a) (a).begin(), (a).end()
const ll INF32 = 2e9;
const ll INF64 = 4e18;
int X;


void printYN(bool ok){
    if(ok)cout << "Yes" << endl;
    else cout << "No" << endl;
    return;
}

int op (int a, int b){
    return max(a, b);
}

int e() {
    return 0;
}

bool f(int x){
    return x <= X;
}

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