CF 634A Island Puzzle

A. Island Puzzle

time limit per test

2 seconds

memory limit per test

256 megabytes

input

standard input

output

standard output

A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple cycle — a bridge connects islands 1 and 2, islands 2 and 3, and so on, and additionally a bridge connects islands n and 1. The center of each island contains an identical pedestal, and all but one of the islands has a fragile, uniquely colored statue currently held on the pedestal. The remaining island holds only an empty pedestal.

The islanders want to rearrange the statues in a new order. To do this, they repeat the following process: First, they choose an island directly adjacent to the island containing an empty pedestal. Then, they painstakingly carry the statue on this island across the adjoining bridge and place it on the empty pedestal.

Determine if it is possible for the islanders to arrange the statues in the desired order.

Input

The first line contains a single integer n (2 ≤ n ≤ 200 000) — the total number of islands.

The second line contains n space-separated integers a_i (0 ≤ a_i ≤ n - 1) — the statue currently placed on the i-th island. If a_i = 0, then the island has no statue. It is guaranteed that the a_i are distinct.

The third line contains n space-separated integers b_i (0 ≤ b_i ≤ n - 1) — the desired statues of the ith island. Once again, b_i = 0indicates the island desires no statue. It is guaranteed that the b_i are distinct.

Output

Print "YES" (without quotes) if the rearrangement can be done in the existing network, and "NO" otherwise.

Examples

input

Copy

3
1 0 2
2 0 1

output

Copy

YES

input

Copy

2
1 0
0 1

output

Copy

YES

input

Copy

4
1 2 3 0
0 3 2 1

output

Copy

NO

Note

In the first sample, the islanders can first move statue 1 from island 1 to island 2, then move statue 2 from island 3 to island 1, and finally move statue 1 from island 2 to island 3.

In the second sample, the islanders can simply move statue 1 from island 1 to island 2.

In the third sample, no sequence of movements results in the desired position.

【题意】

给定一个字符串你，其中为0的字符可以和相邻的交换位置（环形），问可以不可以变换成给定的字符串

 

【分析】

显然的交换并不会影响字符串的相对位置，所以记录一下相对位置就可以啦

 

【代码】

 

　

#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
typedef long long ll;
const int N=2e5+5;
int n,cn1,cn2,a[N],b[N];
inline void Init(){
	scanf("%d",&n);
	for(int i=1,x;i<=n;i++){scanf("%d",&x);if(x) a[cn1++]=x;}
	for(int i=1,x;i<=n;i++){scanf("%d",&x);if(x) b[cn2++]=x;}
}
inline void Solve(){
	int pos=-1;
	for(int i=0;i<n;i++){
		if(b[i]==a[0]){
			pos=i;break;
		}
	}
	for(int i=0;i<n-1;i++){
		if(a[i]!=b[(i+pos)%(n-1)]){
			puts("NO");
			return ;
		}
	}
	puts("YES");
}
int main(){
	Init();
	Solve();
	return 0;
}