#include<bits/stdc++.h> using namespace std; int n,m; int a[900010]; signed main(){ cin >> n >> m; for(int i = 1; i<= n;i++){ cin >> a[i]; } for(int i = 1;i <= n-m+1;i++){ int maxn = -1e9; for(int j = 1;j <= m;j++){ maxn = max(maxn,a[i+j-1]); } cout << maxn; } return 0; }