import java.util.*;
import java.io.*;

public class Main {

    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        int n = sc.nextInt();
        int q = sc.nextInt();
        ArrayList<Integer>[] next = new ArrayList[n];
        for(int i=0; i<n; i++){
            next[i] = new ArrayList<Integer>();
        }
        for(int i=0; i<n-1; i++){
            int a = sc.nextInt() - 1;
            int b = sc.nextInt() - 1;
            next[a].add(b);
            next[b].add(a);
        }

        long[] v = new long[n];
        for(int i=0; i<q; i++){
            int p = sc.nextInt() -1;
            int x = sc.nextInt();
            v[p] += x;
        }

        boolean[] use = new boolean[n];
        ArrayDeque<Integer> que = new ArrayDeque<>();
        que.add(0);
        use[0] = true;

        while(que.size() != 0){
            int cur = que.poll();
            for(int i=0; i<next[cur].size(); i++){
                int mnext = next[cur].get(i);
                if(!use[mnext]){
                    use[mnext] = true;
                    v[mnext] += v[cur];
                    que.add(mnext);
                }
            }
        }

        for(int i=0; i<n; i++){
            System.out.print(v[i] + " ");
        }
        System.out.println("");



    }

    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: 84932