@main
struct Lesson {
    static func main() {
        var remaining = 3
        while remaining > 0 {
            print(remaining)
            remaining -= 1
        }
        var attempts = 0
        repeat { attempts += 1 } while attempts < 1
        for number in 0...4 {
            if number == 0 { continue }
            if number == 3 { break }
            print("item", number)
        }
        print("attempts", attempts)
    }
}