var N = 0
var K = 0

fun DontSayN(now : Int) {
    if(now >= N) {
        return
    }
    
    if(now % (K + 1) == K || now == -1) {
        System.out.println(now + 1)
        DontSayN(readLine()!!.toInt())
    }
    else{
        var next = ((now / (K + 1)) + 1) * (K + 1)
        System.out.println(next)
        DontSayN(readLine()!!.toInt())
    }
}

fun main(args : Array<String>) {
    N = readLine()!!.toInt()
    K = readLine()!!.toInt()
    DontSayN(-1)
}