fun main(args: Array<String>) {
    print("Enter width: ")
    val width = readLine()
    print("Enter height: ")
    val height = readLine()
    print("Enter square side: ")
    val squareSide = readLine()
    val numOfSquares = countFittingSquares(width, height, squareSide)
    println(numOfSquares)
}

fun countFittingSquares(width: String?, height: String?, squareSide: String?): Int {
    var widthCount = 0
    var widthEstimate = squareSide?.toInt()!!
    while (widthEstimate <= width?.toInt()!!) {
        widthCount++
        widthEstimate += squareSide?.toInt()!!
    }
    var heightCount = 0
    var heightEstimate = squareSide?.toInt()!!
    while (heightEstimate <= height?.toInt()!!) {
        heightCount++
        heightEstimate += squareSide?.toInt()!!
    }
    var totalFittingSquares = 0
    for (num in 1..widthCount) {
        totalFittingSquares += heightCount
    }
    return totalFittingSquares
}