Problem: You are given a tree consisting of n vertices. A tree is a connected undirected graph with n-1 edges. Each vertex v of this tree has a color assigned to it (a_v = 1 if the vertex v is white and 0 if the vertex v is black).

You have to solve the following problem for each vertex v: what is the maximum difference between the number of white and the number of black vertices you can obtain if you choose some subtree of the given tree that contains the vertex v? The subtree of the tree is the connected subgraph of the given tree. More formally, if you choose the subtree that contains cnt_w white vertices and cnt_b black vertices, you have to maximize cnt_w - cnt_b.

Input

The first line of the input contains one integer n (2 ≤ n ≤ 2 ⋅ 10^5) — the number of vertices in the tree.

The second line of the input contains n integers a_1, a_2, ..., a_n (0 ≤ a_i ≤ 1), where a_i is the color of the i-th vertex.

Each of the next n-1 lines describes an edge of the tree. Edge i is denoted by two integers u_i and v_i, the labels of vertices it connects (1 ≤ u_i, v_i ≤ n, u_i ≠ v_i).

It is guaranteed that the given edges form a tree.

Output

Print n integers res_1, res_2, ..., res_n, where res_i is the maximum possible difference between the number of white and black vertices in some subtree that contains the vertex i.

Examples

Input


9
0 1 1 1 0 0 0 0 1
1 2
1 3
3 4
3 5
2 6
4 7
6 8
5 9


Output


2 2 2 2 2 1 1 0 2 


Input


4
0 0 1 0
1 2
1 3
1 4


Output


0 -1 1 -1 

Note

The first example is shown below:

<image>

The black vertices have bold borders.

In the second example, the best subtree for vertices 2, 3 and 4 are vertices 2, 3 and 4 correspondingly. And the best subtree for the vertex 1 is the subtree consisting of vertices 1 and 3.

Solution (in JAVA):

Solution:
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.StringTokenizer;

public class F_Max_White_Subtrees {

	static int[] dp;
	static int[] ans;
	static int[] a;
	
	public static void main(String[] args) {
		MyScanner sc = new MyScanner();
	    PrintWriter out = new PrintWriter(new BufferedOutputStream(System.out));
	    
	    int nodeCount = sc.nextInt();
	    a = new int[nodeCount];
	    for (int i = 0; i < a.length; i++) {
			a[i] = sc.nextInt();
			if(a[i] == 0) a[i] = -1;
		}
	    
	    ArrayList<ArrayList<Integer>> tree = new ArrayList<>();
	    //add nodes
	    for(int i = 0; i < nodeCount; i++) {
	    	tree.add(new ArrayList<Integer>());
	    }
	    for(int i = 0; i < nodeCount - 1; i++) {
	    	int x = sc.nextInt() - 1;
	    	int y = sc.nextInt() - 1;
	    	
	    	tree.get(x).add(y);
	    	tree.get(y).add(x);
	    }
	    
	    dp = new int[nodeCount];
	    ans = new int[nodeCount];
	    
	    //Build DP table
	    dfs(tree, 0, -1);
	    
	    //Reroot tree
	    dfsReroot(tree, 0, -1);
	    
	    for (int x : ans) {
			out.print(x + " ");
		}
	    out.println();
	    
	    out.close();
	}
	
	public static void dfsReroot(ArrayList<ArrayList<Integer>> tree, int n, int parent) {
		ans[n] = dp[n];
		
		for(int child : tree.get(n)) {
			if(child == parent) continue;
			//Update old root - old loses the values of child unless child contributes nothing
			dp[n] -= Math.max(0, dp[child]);
			//Update new root to child
			dp[child] += Math.max(0, dp[n]);

			//dfs reroot child
			dfsReroot(tree, child, n);
			
			//undo changes
			dp[child] -= Math.max(0, dp[n]);
			dp[n] += Math.max(0, dp[child]);
		}
	}
	
	public static void dfs(ArrayList<ArrayList<Integer>> tree, int n, int parent) {
		dp[n] = a[n];
		
		for(int child : tree.get(n)) {
			if(child == parent) continue;
			dfs(tree, child, n);
			//Only take values of child if they are > 0 - otherwise not worth it
			dp[n] += Math.max(0, dp[child]);
		}
	}

	
	
	
	
	public static class MyScanner {
	      BufferedReader br;
	      StringTokenizer st;
	 
	      public MyScanner() {
	         br = new BufferedReader(new InputStreamReader(System.in));
	      }
	 
	      String next() {
	          while (st == null || !st.hasMoreElements()) {
	              try {
	                  st = new StringTokenizer(br.readLine());
	              } catch (IOException e) {
	                  e.printStackTrace();
	              }
	          }
	          return st.nextToken();
	      }
	 
	      int nextInt() {
	          return Integer.parseInt(next());
	      }
	 
	      long nextLong() {
	          return Long.parseLong(next());
	      }
	 
	      double nextDouble() {
	          return Double.parseDouble(next());
	      }
	 
	      String nextLine(){
	          String str = "";
		  try {
		     str = br.readLine();
		  } catch (IOException e) {
		     e.printStackTrace();
		  }
		  	 return str;
	      }
	
	   }
}