fun main(){
    val n = readLine()!!.toInt()
    var satr1 = ((n / 2).toInt()) + 1
    var satr2 = n - satr1
    var star = 1
    var space = satr1 - 1
    while (satr1 > 0){
        var i = 0
        while (space > i){
            print(" ")
            i++
        }
        var j = 0
        while (star > j){
            print("*")
            j++
        }
        space--
        star += 2
        println()
        satr1--
    }
    star -= 4
    space += 2
    var q = 0
    while(satr2 > q){
        var t = 0
        while (space > t){
            print(" ")
            t++
        }
        var u = 0
        while (star > u){
            print("*")
            u++
        }
        println()
        space++
        star -= 2
        q++
    }
}