kokoropyonpyon-fibonacci.java

public class Main
{
	public static void main(String[] args)
	{
		String kokoro  = "kokoro";
		String pyon = "pyon";
		String befo = pyon;
		String res = kokoro + pyon;
		String res2 = "";
		int i = 1;
		while(i< 10){
			i++;
			System.out.println(res);
			res2 = befo + res;
			befo = res;
			res = res2;
		}
	}
}