import java.util.*;
import java.io.InputStream;
import java.io.IOException;

public class Main {
  public static void main(String[] args) {
    FastScanner sc = new FastScanner();
    int N = sc.nextInt();
    int Q = sc.nextInt();
    List<Node> nodes = new ArrayList<>();
    for (int i = 0; i < N; i++) {
      nodes.add(new Node());
    }
    for (int i = 0; i < N-1; i++) {
      int a = sc.nextInt();
      int b = sc.nextInt();
      nodes.get(a-1).children.add(b);
    }
    
    Map<Integer, Integer> map = new HashMap<>();
    for (int i = 0; i < Q; i++) {
      int p = sc.nextInt();
      int x = sc.nextInt();
      map.put(p, map.getOrDefault(p, 0)+x);
    }

    //
    dfs(1, nodes, map, map.getOrDefault(1, 0));
    
    for (int i = 0; i < N; i++) {
      System.out.print(nodes.get(i).counter + " ");
    }
    System.out.println();
  }
  
  private static class Node {
    int counter = 0;
    List<Integer> children = new ArrayList<>();
  }
  
  private static void dfs(int n, List<Node> nodes, Map<Integer, Integer> map, int counter) {

    nodes.get(n-1).counter = counter;

    if (nodes.get(n-1).children.isEmpty()) {
      return;
    }

    for (int child : nodes.get(n-1).children) {
      dfs(child, nodes, map, counter + map.getOrDefault(child, 0));
    }
  }
  
  
  // https://qiita.com/p_shiki37/items/a0f6aac33bf60f5f65e4
  private static class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() { return Double.parseDouble(next());}
}
}


Measured memory_bytes: 148832