No tricky zundoko program in Java

Zundoko.java

class Zundoko {
	public static void main(String args[]) {
		java.util.Random rnd = new java.util.Random();
		int zun;
		do {
			for (zun = 0; rnd.nextBoolean(); zun++) {
				System.out.println("ズン");
			}
			System.out.println("ドコ");
		} while (zun < 4);
		System.out.println("キ・ヨ・シ!");
	}
}