import java.util.*

fun main(args: Array<String>) {
    p11()
}

private inline fun printString(builderAction: StringBuilder.() -> Unit) = print(buildString(builderAction))
private fun StringBuilder.println(message: Any?) = appendln(message)
private fun StringBuilder.print(message: Any?) = append(message)

fun p11() = printString {
    val n = readLine()!!.toInt()

    val distances = IntArray(101010) { -1 }
    val visited = mutableSetOf<Int>()
    val queue = ArrayDeque(listOf(1 to 1))
    fun getMoveDistance(value: Int): Int = Integer.bitCount(value)

    while (queue.isNotEmpty()) {
        val (position, distance) = queue.poll()
        distances[position] = distance

        val move = getMoveDistance(position)
        val left = position - move
        val right = position + move
        if (left in 1..n && visited.add(left)) queue.add(left to distance + 1)
        if (right in 1..n && visited.add(right)) queue.add(right to distance + 1)
    }

    val answer = distances[n]

    println(answer)
}