// 提出時に定数倍高速化,assertはオフ
#ifndef DEBUG
#pragma GCC target("avx2")
#pragma GCC optimization("O3")
#pragma GCC optimization("unroll-loops")
#ifndef NDEBUG
#define NDEBUG
#endif
#endif

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

#define all(x) (x).begin(), (x).end()
template <class T> using vec = vector<T>;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int N, K;
    cin >> N >> K;
    vec<int>A(N);
    for(int &a : A) cin >> a;
    stack<int> cur;
    vec<int> front, back;
    for(int i = 0; i < N; i++){
        if(cur.empty()){
            cur.push(i);
            continue;
        }
        if(cur.top() < i){
            while(!cur.empty()){
                front.push_back(cur.top());
                cur.pop();
            }
        } else if(cur.top() < i){
            while(!cur.empty()){
                back.push_back(cur.top());
                cur.pop();
            }
        }
        cur.push(i);
    }
    reverse(all(back));
    for(int &x : front) cout << x << " ";
    for(int &x : back) cout << x << " ";
    cout << "\n";
}