using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using static System.Math;

namespace CSharpSpiral {
	class Program {
		static void Main(string[] args) {
			var sw = new StreamWriter(Console.OpenStandardOutput()) {
				AutoFlush=
#if DEBUG
			true
#else
			false
#endif
			};
			Console.SetOut(sw);
			new Program().Solve(new ConsoleInput(
#if DEBUG
			new StreamReader("../../../inputData.txt")
#else
			Console.In
#endif
			, ' '));
			Console.Out.Flush();
		}
		public void Solve(ConsoleInput cin) {
			var N = cin.ReadInt;
			var Q = cin.ReadInt;
			var G = new Graph<long>(N);
			for(int i = 0; i<N-1; i++) {
				var edge = cin.ReadIntArray(2);
				G.AddEdge(edge[0]-1, edge[1]-1, 1);
				G.AddEdge(edge[1]-1, edge[0]-1, 1);
			}
			for(int i = 0; i<Q; i++) {
				var query = cin.ReadIntArray(2);
				G.Nodes[query[0]-1]+=query[1];
			}
			var res = new long[N];
			var tmp = 0L;
			G.PointDFS(0, s => { tmp+=G.Nodes[s]; res[s]=tmp; }, s => { tmp-=G.Nodes[s]; });
			Console.WriteLine(res.Join());
		}

		class Graph<T> {
			public readonly int N;
			public T[] Nodes { get; }
			private List<int>[] Nexts { get; }
			private Dictionary<int, T>[] Edges { get; set; }
			public Graph(int _N) {
				N=_N;
				Nodes=new T[_N];
				Nexts=new List<int>[_N];
				Edges=new Dictionary<int, T>[_N];
				for(int i = 0; i<_N; i++) {
					Nexts[i]=new List<int>();
					Edges[i]=new Dictionary<int, T>();
				}
			}
			public void Update(int i, T value) {
				Nodes[i]=value;
			}
			public void AddEdge(int from, int to, T value) {
				Edges[from].Add(to, value);
				Nexts[from].Add(to);
			}
			public void PointDFS(int from, Action<int> onEnter, Action<int> onLeave) {
				var S = new Stack<int>();
				S.Push(from);
				var entered = new bool[N];
				var departed = new bool[N];//dep<=ent
				var childCount = new int[N];
				while(S.Any()) {
					var v = S.Peek();
					if(!entered[v]) {
						onEnter?.Invoke(v);
						entered[v]=true;
					}
					for(int i = childCount[v]; i<Nexts[v].Count; i++) {
						if(!entered[Nexts[v][i]]) {
							S.Push(Nexts[v][i]);
							childCount[v]=i+1;
							goto NextLoop;
						}
					}
					S.Pop();
					childCount[v]=Nexts[v].Count;
					if(!departed[v]) {
						onLeave?.Invoke(v);
						departed[v]=true;
					}
				NextLoop:;
				}
			}
		}
	}
	static class ExtendClass {
		public static void Swap<T>(this T[] A, int x, int y) {
			var tmp = A[x];
			A[x]=A[y];
			A[y]=tmp;
		}
		public static string Join<T>(this IEnumerable<T> X, string separator = " ") => string.Join(separator, X);
		public static IEnumerable<int> Indices<T>(this T[] X) => Enumerable.Range(0, X.Length);
		public static IEnumerable<int> Indices<T>(this T[,] X, int dim)
			=> Enumerable.Range(0, X.GetLength(dim));
		public static string Join<T>(this T[,] X, string separatorD2 = ",", string separatorD1 = "\n")
			=> X.Indices(0).Select(
				i => X.Indices(1).Select(j => X[i, j]).Join(separatorD2)
			).Join(separatorD1);
	}
	class ConsoleInput {
		private readonly TextReader _stream;
		private readonly char _separator = ' ';
		private readonly Queue<string> inputStream;
		public ConsoleInput(TextReader stream, char separator = ' ') {
			this._separator=separator;
			this._stream=stream;
			inputStream=new Queue<string>();
		}
		public string Read {
			get {
				if(inputStream.Count!=0) return inputStream.Dequeue();
				string[] tmp = _stream.ReadLine().Split(_separator);
				for(int i = 0; i<tmp.Length; ++i)
					inputStream.Enqueue(tmp[i]);
				return inputStream.Dequeue();
			}
		}
		public string ReadLine { get { return _stream.ReadLine(); } }
		public int ReadInt { get { return int.Parse(Read); } }
		public long ReadLong { get { return long.Parse(Read); } }
		public double ReadDouble { get { return double.Parse(Read); } }
		public string[] ReadStrArray(long N) {
			var ret = new string[N];
			for(long i = 0; i<N; ++i)
				ret[i]=Read;
			return ret;
		}
		public int[] ReadIntArray(long N) { var ret = new int[N]; for(long i = 0; i<N; ++i) ret[i]=ReadInt; return ret; }
		public long[] ReadLongArray(long N) { var ret = new long[N]; for(long i = 0; i<N; ++i) ret[i]=ReadLong; return ret; }
		public double[] ReadDoubleArray(long N) { var ret = new double[N]; for(long i = 0; i<N; ++i) ret[i]=ReadDouble; return ret; }
		public bool isEOF {
			get { return _stream.Peek()==-1; }
		}
	}

}

Measured memory_bytes: 116564