public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader read = new BufferedReader(new InputStreamReader(System.in)); int num = Integer.parseInt(read.readLine()); if (num<1 || num>999){ System.out.println(""); } else if(num<10){ if(num%2==0){ System.out.println("even singel-digit number"); } else{ System.out.println("odd single-digit number"); } } else if(num<100 && num>9){ if(num%2==0){ System.out.println("even two-digit number"); } else{ System.out.println("odd two-digit number"); } } else if(num>99 && num<999){ if (num%2==0){ System.out.println("even three-digit number"); } else{ System.out.println("odd three-digit number"); } } } }