using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
    private int N, Q;
    private int[] A, B, P, X;
    private List<int>[] Edge;
    private int[] Parent;
    private int[] Query;

    private int[] Ans;

    public void Solve()
    {
        var sc = new Scanner();
        N = sc.NextInt();
        Q = sc.NextInt();
        A = new int[N - 1];
        B = new int[N - 1];
        for (int i = 0; i < N - 1; i++)
        {
            int a = sc.NextInt() - 1;
            int b = sc.NextInt() - 1;
            A[i] = a;
            B[i] = b;
        }

        P = new int[Q];
        X = new int[Q];
        for (int i = 0; i < Q; i++)
        {
            P[i] = sc.NextInt() - 1;
            X[i] = sc.NextInt();
        }

        Edge = new List<int>[N];
        for (int i = 0; i < N; i++)
        {
            Edge[i] = new List<int>();
        }

        for (int i = 0; i < N - 1; i++)
        {
            Edge[A[i]].Add(B[i]);
            Edge[B[i]].Add(A[i]);
        }

        Parent = new int[N];
        SetParent(0, -1);

        Query = new int[N];

        for (int i = 0; i < Q; i++)
        {
            Query[P[i]] += X[i];
        }

        Ans = new int[N];
        for (int i = 0; i < N; i++)
        {
            Ans[i] = -1;
        }

        Console.WriteLine(string.Join(" ", (new int[N]).Select((i,index)=>Calc(index)).ToArray()));
    }

    private int Calc(int n)
    {
        if (Ans[n] != -1)
        {
            return Ans[n];
        }
        if (n == 0)
        {
            Ans[n] = Query[n];
            return Query[n];
        }

        int result = Calc(Parent[n]) + Query[n];
        Ans[n] = result;
        return result;
    }

    void SetParent(int n, int parent)
    {
        Parent[n] = parent;
        foreach (int i in Edge[n])
        {
            if (i == parent) continue;
            SetParent(i, n);
        }
    }

    public static void Main(string[] args)
    {
        new Program().Solve();
    }
}

class Scanner
{
    public Scanner()
    {
        _pos = 0;
        _line = new string[0];
    }

    const char Separator = ' ';
    private int _pos;
    private string[] _line;

    #region スペース区切りで取得

    public string Next()
    {
        if (_pos >= _line.Length)
        {
            _line = Console.ReadLine().Split(Separator);
            _pos = 0;
        }

        return _line[_pos++];
    }

    public int NextInt()
    {
        return int.Parse(Next());
    }

    public long NextLong()
    {
        return long.Parse(Next());
    }

    public double NextDouble()
    {
        return double.Parse(Next());
    }

    #endregion

    #region 型変換

    private int[] ToIntArray(string[] array)
    {
        var result = new int[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = int.Parse(array[i]);
        }

        return result;
    }

    private long[] ToLongArray(string[] array)
    {
        var result = new long[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = long.Parse(array[i]);
        }

        return result;
    }

    private double[] ToDoubleArray(string[] array)
    {
        var result = new double[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = double.Parse(array[i]);
        }

        return result;
    }

    #endregion

    #region 配列取得

    public string[] Array()
    {
        if (_pos >= _line.Length)
            _line = Console.ReadLine().Split(Separator);

        _pos = _line.Length;
        return _line;
    }

    public int[] IntArray()
    {
        return ToIntArray(Array());
    }

    public long[] LongArray()
    {
        return ToLongArray(Array());
    }

    public double[] DoubleArray()
    {
        return ToDoubleArray(Array());
    }

    #endregion
}

Measured memory_bytes: 82536