fun main() {
    q2164()
}

fun q2164() {
    val cards = java.util.LinkedList<Int>()
    for(i in 1.. readln().toInt()) {
        cards.add(i)
    }
    
    while (cards.count() > 2) {
        cards.removeFirst()
        cards.addLast(cards.removeFirst())
    }
    println(cards.last)
}