#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,k,a[1000005];
	cin>>n>>k;
	for(int i=1;i<=n;i++){
		cin>>a[i];
	}
	for(int i=1;i<=n-k+1;i++){
		cout<<min(min(a[i],a[i+1]),a[i+2])<<" ";
	}
	cout<<endl;
	for(int i=1;i<=n-k+1;i++){
		cout<<max(max(a[i],a[i+1]),a[i+2])<<" ";
	}
	return 0;
}