package main

import . "fmt"

func main() {
	var t int
	Scan(&t)
	for ; t>0; t-- {
		var d,a,x uint64
		Scan(&d,&a)
		for ; d>0; d-- {
			Scan(&x)
			Print((x*10/a+5)/2)
			if d>1 {
				Print(" ")
			}
		}
		Println()
	}
	
}