--https://www.lua.org/pil/11.4.html
local List = {}
function List.new ()
  return {first = 0, last = -1}
end

function List.pushleft (list, value)
  local first = list.first - 1
  list.first = first
  list[first] = value
end

function List.pushright (list, value)
  local last = list.last + 1
  list.last = last
  list[last] = value
end

function List.popleft (list)
  local first = list.first
  if first > list.last then return false end
  local value = list[first]
  list[first] = nil
  list.first = first + 1
  return value
end

function List.popright (list)
  local last = list.last
  if list.first > last then return false end
  local value = list[last]
  list[last] = nil
  list.last = last - 1
  return value
end

----------

local n,q=io.read("n","n")
local edge={}
local counter={}
for i=1,n do
    counter[i]=0
    edge[i]={}
end
for i=1,n-1 do
    local a,b=io.read("n","n")
    edge[a][b]=false
    edge[b][a]=false
end
for i=1,q do
    local p,x=io.read("n","n")
    counter[p]=counter[p]+x
end

local que=List.new()
List.pushright(que,1)

while true do
    local a=List.popleft(que)
    if a then
        for b,_ in pairs(edge[a]) do
            if not edge[a][b] then
                counter[b]=counter[b]+counter[a]
                edge[a][b]=true
                edge[b][a]=true
                List.pushright(que,b)
            end
        end
    else
        break
    end
end

print(table.concat(counter," "))