import java。io。BufferedReader;
import java。io。InputStreamReader;
import java。io。IOException;
public class Average{
	public static void main(String[] args) throws IOException{
		while(true){
			System。
  out。println("please input numbers, put space to split them");
			String input = getSNumbers();
			int numbers[] = new int[0];
			try{
				numbers = getNumbers(input);
			}catch(NumberFormatException e){
				System。
  out。println("please input positive numbers");
				continue;
			}catch(NotPositiveException e){
				System。out。println(e。
  getMessage());
				continue;
			}
			int total = 0;
			for(int i=0; i  length;
				System。out。println(result);
			}catch(ArithmeticException e){
				System。out。println("don't input nothing");
			}
			
		}
	}
	
	public static int[] getNumbers(String numbers){
		String []sNumbers = numbers。
  split(" ");
		if(sNumbers。length==1&&sNumbers[0]。equals("")) return new int[0];
		int[] iNumbers = new int[sNumbers。length];
		for(int i=0; i  length; i++){
			int temp = Integer。parseInt(sNumbers[i]);
			if(temp<=0) throw new NotPositiveException(temp + " is not positive");
			iNumbers[i] = temp;
		}
		return iNumbers;
	}
	
	public static String getSNumbers()throws IOException{
		BufferedReader reader = new BufferedReader(new InputStreamReader(System。
  in));
		String input = reader。
  readLine();
		return input;
	}
}
class NotPositiveException extends RuntimeException{
	public NotPositiveException(String s){
		super(s);
	}
}。