//<editor-fold desc="I/O Templates">
private fun readLn() = readLine()!!
private fun readInt() = readLn().toInt()
private fun readLong() = readLn().toLong()
private fun readStrings() = readLn().split(" ")
private fun readInts() = readStrings().map(String::toInt)
private fun readLongs() = readStrings().map(String::toLong)
//</editor-fold>

fun main() {
    val n = readInt()
    println(10 - n / 200)
}