import sys
from collections import deque
def main():
    input=sys.stdin.readline
    n,q=map(int,input().split())

    edge=[[] for _ in range(n)]
    for _ in range(n-1):
        u,v=map(int,input().split())
        u-=1;v-=1
        edge[u].append(v)
   
    cost=[0]*n
    for _ in range(q):
        p,x=map(int,input().split())
        p-=1
        cost[p]+=x

    for idx,e in enumerate(cost):
        if e==0:continue
        for f in edge[idx]:
            cost[f]+=e

    print(*cost)

if __name__ == "__main__":
    main()