/*
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	 While文 入力を繰り返すプログラム While_01_inputi
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*/

import java.io.*;

class While_01_input {
	public static void main(String[] args) throws Exception {
		
		int kazu;
		
		BufferedReader inp=new BufferedReader
			(new InputStreamReader(System.in));
		String keybd;

		System.out.print("数を入れてください-->");
		keybd=inp.readLine();
		kazu=Integer.parseInt(keybd);
		
		
		while ( kazu!=0 ) {
			System.out.print("数を入れてください-->");
			keybd=inp.readLine();
			kazu=Integer.parseInt(keybd);
		}
		
	}
}