Swift2でズンドコキヨシ ref: http://qiita.com/ryoppippi/items/437cbe7b1995584116aa

zundoko.swift

import UIKit
let array = ["ズン", "ドコ"]
var zun = 0
while true {
    let a = Int(arc4random_uniform(2))
    print(array[a])
    if a == 0  {
        zun += 1
    }
    else if a == 1 && zun == 4 {
        break
    }
    else{
        zun = 0
    }
}
print("キ・ヨ・シ！！")