fun main() {
    val n = readLine()!!.toInt()
    val a = readLine()!!.split(" ").map{it.toInt()}
    val b = readLine()!!.split(" ").map{it.toInt()}
    println(((0 until n).map{a[it]==b[it]} as MutableList<Boolean>).apply{add(true)}.zipWithNext().filter{it.second && it.first!=it.second}.size)
}