var n = 0
var q = 0
var p = IntArray(0)
var x = LongArray(0)
var g = Array(0){IntVec()}
var queries = LongArray(0)
var scores = LongArray(0)

fun main(args: Array<String>) = IO().exec {
    n = int()
    q = int()
    g = Array(n){IntVec()}
    for (i in n-1) {
        val a = int()-1
        val b = int()-1
        g[a].add(b)
        g[b].add(a)
    }
    p = IntArray(q)
    x = LongArray(q)
    queries = LongArray(n)
    scores = LongArray(n)
    for (i in q) {
        p[i] = int()-1
        x[i] = long()
        queries[p[i]] += x[i]
    }
    rec(0, -1, 0)
    println(scores.joinToString(" "))
}

fun rec(cur: Int, pre: Int, delta: Long) {
    val d = delta + queries[cur]
    scores[cur] = d
    for (v in g[cur]) {
        if (v == pre) continue
        rec(v, cur, d)
    }
}

class IntVec(capacity: Int = 8) {
    var array = IntArray(capacity)
    var size = 0
    operator fun get(i: Int): Int = array[i]
    operator fun set(i: Int, v: Int) {
        array[i] = v
    }
    fun add(v: Int) {
        if (size < array.size) array[size++] = v
        else {
            grow()
            array[size++] = v
        }
    }
    private fun grow() {
        val newCapacity = array.size * 8
        val newArray = IntArray(newCapacity)
        System.arraycopy(array, 0, newArray, 0, array.size)
        array = newArray
    }
    override fun toString(): String {
        return array.slice(0 until size).toString()
    }
    operator fun iterator(): Iterator<Int> = array.sliceArray(0 until size).iterator()
}

// region template
operator fun Int.iterator() = 0.until(this).iterator()

class IO {
    val printable = 33..126
    val buffer = ByteArray(1024)
    var ptr = 0
    var buflen = 0
    val out = java.io.PrintWriter(System.out)
    fun hasNextByte(): Boolean = if (ptr < buflen) true else {
        ptr = 0
        buflen = System.`in`.read(buffer)
        buflen > 0
    }

    fun readByte(): Byte = if (hasNextByte()) buffer[ptr++] else -1
    fun hasNext(): Boolean {
        while (hasNextByte() && buffer[ptr] !in printable) ptr++
        return hasNextByte()
    }

    fun string(): String {
        if (!hasNext()) throw java.util.NoSuchElementException()
        val sb = StringBuilder()
        var b = readByte()
        while (b in printable) {
            sb.appendCodePoint(b.toInt())
            b = readByte()
        }
        return sb.toString()
    }

    fun long(): Long {
        if (!hasNext()) throw java.util.NoSuchElementException()
        var n = 0L
        var minus = false
        var b = readByte()
        if (b == '-'.toByte()) {
            minus = true
            b = readByte()
        }
        if (b !in '0'.toByte()..'9'.toByte()) {
            throw NumberFormatException()
        }
        while (true) {
            if (b in '0'.toByte()..'9'.toByte()) {
                n *= 10
                n += b - '0'.toByte()
            } else if (b == (-1).toByte() || b !in printable) {
                return if (minus) -n else n
            } else {
                throw NumberFormatException()
            }
            b = readByte()
        }
    }

    fun int(): Int {
        val nl = long()
        if (nl !in Integer.MIN_VALUE..Integer.MAX_VALUE) throw NumberFormatException()
        return nl.toInt()
    }

    fun double(): Double = string().toDouble()
    fun print(obj: Any) = out.print(obj)
    fun print(i: Int) = out.print(i)
    fun print(l: Long) = out.print(l)
    fun println(obj: Any) = out.println(obj)
    fun println(i: Int) = out.println(i)
    fun println(l: Long) = out.println(l)
    inline fun exec(block: IO.() -> Unit) {
        block()
        out.flush()
    }
}
// endregion


Measured memory_bytes: 97984