#include<cstdlib>
#include<cstdio>
#include<iostream>
#include<queue>
using namespace std;
const int maxn=1000001;
void insert(int);
int a[maxn]={0},b[maxn]={0},c[maxn]={0};	
deque<int> q1,q2;
int main(){
	freopen("window.in", "r", stdin);
	freopen("window.out", "w", stdout);
	int n,k;
	scanf("%d%d",&n,&k);
	if(k>n)k=n;
	for(int i=1;i<=n;i++){
		scanf("%d",&a[i]);
	}
	for(int i=1;i<k;i++)insert(i);
	for(int i=k;i<=n;i++){
		insert(i);
		if(!q1.empty()&&q1.front()<=i-k)q1.pop_front();
		if(!q2.empty()&&q2.front()<=i-k)q2.pop_front();
		b[i]=q1.front();c[i]=q2.front();
	}
	for(int i=k;i<n;i++)printf("%d ",a[c[i]]);printf("%d\n",a[c[n]]);
	for(int i=k;i<n;i++)printf("%d ",a[b[i]]);printf("%d\n",a[b[n]]);
	return 0;
}
void insert(int x){
	while(!q1.empty()&&a[q1.back()]<=a[x])q1.pop_back();q1.push_back(x);
	while(!q2.empty()&&a[q2.back()]>=a[x])q2.pop_back();q2.push_back(x);
}