fun main() {
    val steps = 4000
    val caloriesBurned = stepsToCalories(steps)
    println("Walking $steps steps burns $caloriesBurned calories")
}

fun stepsToCalories(numberOfSteps: Int): Double {
    val caloriesBurnedPerStep = 0.04
    val totalCaloriesBurned = numberOfSteps * caloriesBurnedPerStep
    return totalCaloriesBurned
}