import java.util.*
 
fun main(args: Array<String>) {
    println("Input n:")
    val n: Int = readLine()!!.toInt()
 
    if(n>100 || n <= 0){
    	println("Invalid input")
    	return
    }
    var sum: Float = 0F
    var count: Int = 0
    while(count <= n){
        var mauSo: Float = 0F
    	mauSo = 2 * (countSumFrom0ToNumber(count)).toFloat()
    	if(mauSo == 0F) {
    		sum += 1
    	} else {
    		sum += (1 / mauSo).toFloat()
    	}
    	count ++
    }
    println("Result = ${sum}")
}
 
fun countSumFrom0ToNumber(number: Int): Int{
	var sum = 0
	var count = 0
	while(count <= number){
		sum += count
		count ++
	}
	return count
}

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5