using System;
using System.Collections.Generic;
using System.Linq;
using static System.Math;

namespace CSharp
{
    static class Program
    {
        static void Add(int[] values, int[] counts, List<int>[] edges, bool[] visited, int no, int addValue)
        {
            if (visited[no])
            {
                return;
            }

            visited[no] = true;
            int currentAddValue = addValue + counts[no];
            values[no] += currentAddValue;
            foreach (var child in edges[no])
            {
                Add(values, counts, edges, visited, child, currentAddValue);
            }
        }

        static void Main(string[] args)
        {
            int n, q;
            ReadInt(out n, out q);

            List<int>[] edges = Enumerable.Repeat(0, n).Select(_ => new List<int>()).ToArray();
            for (int i = 0; i < n - 1; i++)
            {
                int a, b;
                ReadInt(out a, out b);
                a--; b--;
                edges[a].Add(b);
                edges[b].Add(a);
            }

            int[] count = new int[n];
            for (int i = 0; i < q; i++)
            {
                int p, x;
                ReadInt(out p, out x);
                count[p - 1] += x;
            }

            int[] value = new int[n];
            Add(value, count, edges, new bool[n], 0, 0);
            Console.WriteLine(string.Join(" ", value));
        }

        #region Helpers

        static int[] ReadIntArray() => Console.ReadLine().Split().Select(s => int.Parse(s)).ToArray();
        static long[] ReadLongArray() => Console.ReadLine().Split().Select(s => long.Parse(s)).ToArray();

        static int[] ReadLineIntArray(int count) => Enumerable.Repeat(0, count).Select(_ => int.Parse(Console.ReadLine())).ToArray();
        static long[] ReadLineLongArray(int count) => Enumerable.Repeat(0, count).Select(_ => long.Parse(Console.ReadLine())).ToArray();

        static string ReadString() => Console.ReadLine();
        static int ReadInt() => int.Parse(Console.ReadLine());
        static long ReadLong() => long.Parse(Console.ReadLine());

        static void ReadInt(out int first)
        {
            var array = ReadIntArray();
            first = array[0];
        }

        static void ReadInt(out int first, out int second)
        {
            var array = ReadIntArray();
            first = array[0];
            second = array[1];
        }

        static void ReadInt(out int first, out int second, out int third)
        {
            var array = ReadIntArray();
            first = array[0];
            second = array[1];
            third = array[2];
        }

        static void ReadInt(out int first, out int second, out int third, out int fourth)
        {
            var array = ReadIntArray();
            first = array[0];
            second = array[1];
            third = array[2];
            fourth = array[3];
        }

        static void ReadLong(out long first)
        {
            var array = ReadLongArray();
            first = array[0];
        }

        static void ReadLong(out long first, out long second)
        {
            var array = ReadLongArray();
            first = array[0];
            second = array[1];
        }

        static void ReadLong(out long first, out long second, out long third)
        {
            var array = ReadLongArray();
            first = array[0];
            second = array[1];
            third = array[2];
        }

        static void ReadLong(out long first, out long second, out long third, out long fourth)
        {
            var array = ReadLongArray();
            first = array[0];
            second = array[1];
            third = array[2];
            fourth = array[3];
        }

        #endregion
    }
}

Measured memory_bytes: 82192