var GET=(function(){function f(s){return new g(s);}function g(s){this._s=s.trim().split("\n");this._y=0;}g.prototype.a=function(f){var s=this._s, y=this._y, r;if(typeof s[y]==="string")s[y]=s[y].split(" ").reverse();r=s[y].pop();if(!s[y].length)this._y++;return f?r:+r;};g.prototype.l=function(f){var s=this._s[this._y++].split(" ");return f?s:s.map(a=>+a);};g.prototype.m=function(n,f){var r=this._s.slice(this._y,this._y+=n).map(a=>a.split(" "));return f?r:r.map(a=>a.map(a=>+a));};g.prototype.r=function(n,f){var r=this._s.slice(this._y,this._y+=n);return f?r:r.map(a=>+a);};return f;})();
var o=GET(require("fs").readFileSync("/dev/stdin","utf8"));
function xArray(v){var a=arguments,l=a.length,r="Array(a["+--l+"]).fill(0).map(x=>{return "+v+";})";while(--l)r="Array(a["+l+"]).fill(0).map(x=>"+r+")";return eval(r);}
var ans;

function main(){
  var n = o.a();
  var q = o.a();
  var graph = xArray("[]",n);
  for(var i = 1; i < n; i++){
    var a = o.a()-1, b = o.a()-1;
    graph[a].push(b);
    graph[b].push(a);
  }
  ans = xArray(0,n);
  for(var i = 0; i < q; i++){
    var p = o.a()-1, x = o.a();
    ans[p] += x;
  }
  dfs(graph,0,-1,0);
  return ans.join(" ");
}

function dfs(g,v,p,c){
  ans[v] += c;
  c = ans[v];
  for(var V of g[v]){
    V = +V;
    if(V === p)continue;
    dfs(g,V,v,c);
  }
}

if (process.argv.length <= 2) require("child_process").fork("Main.js", ["1"], { execArgv: ["--stack-size=240000"] });
else {
  console.log(main());
}