#[allow(unused_macros)]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes
                .by_ref()
                .map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr, ) => {};

    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };

    ($next:expr, mut $var:ident : $t:tt $($r:tt)*) => {
        let mut $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => {
        ( $(read_value!($next, $t)),* )
    };

    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };

    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };

    ($next:expr, usize1) => {
        read_value!($next, usize) - 1
    };

    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}

#[allow(unused_macros)]
macro_rules! debug {
    ($($a:expr),*) => {
        #[cfg(debug_assertions)]
        writeln!(&mut std::io::stderr(), concat!("[DEBUG] ", $(stringify!($a), "={:?} "),*), $($a),*);
    }
}

#[allow(unused_imports)]
use std::cmp::{min, max};
#[allow(unused_imports)]
use std::io::{stdout, stdin, BufWriter, Write};

#[derive(Debug)]
pub struct Graph {
    n: usize,
    edges: Vec<Vec<usize>>,
    ps: Vec<usize>
}
#[derive(Debug)]
pub struct DFSState {
    ans: Vec<usize>,
}
impl Graph {
    pub fn dfs(&self, cur: usize, from: usize, state: &mut DFSState) {
        for &to in self.edges[cur].iter() {
            if to != from {
                state.ans[to] = state.ans[cur] + self.ps[to];
                self.dfs(to, cur, state);
            }
        }
    }
}

fn main() {
    let out = std::io::stdout();
    let mut out = BufWriter::new(out.lock());
    macro_rules! puts {
        ($($format:tt)*) => (write!(out,$($format)*).unwrap());
    }

    input!{
      n: usize,
      q: usize,
      abs: [(usize1, usize1); n-1],
      pxs: [(usize1,usize); q],
    }

    let mut edges = vec![vec![]; n];
    for (a, b) in abs {
        edges[a].push(b);
        edges[b].push(a);
    }

    let mut ps = vec![0; n];
    for (p, x) in pxs {
        ps[p] += x;
    }

    let g = Graph { n: n, edges: edges, ps: ps };
    let mut state = DFSState {
        ans: vec![0; n]
    };
    state.ans[0] += g.ps[0];
    g.dfs(0, n, &mut state);

    let ans = state.ans;
    for i in 0..ans.len() {
        if i == ans.len() - 1 {
            puts!("{}", ans[i]);
        } else {
            puts!("{} ", ans[i]);
        }
    }
    puts!("\n")
}


Measured memory_bytes: 35324