import java.util.Scanner; public class Main{ public static void main(String[] args){ Scanner in = new Scanner(System.in); while(in.hasNext()){ String str = in.nextLine(); String s1 = "reset"; String s2 = "reset board"; String s3 = "board add"; String s4 = "board delete"; String s5 = "reboot backplane"; String s6 = "backplane abort"; if(str.matches(s1)){ System.out.println("reset what"); } else if(str.matches(s2)){ System.out.println("board fault"); } else if(str.matches(s3)){ System.out.println("where to add"); } else if(str.matches(s4)){ System.out.println("no board at all"); } else if(str.matches(s5)){ System.out.println("impossible"); } else if(str.matches(s6)){ System.out.println("install first"); } else{ System.out.println("unknown command"); } } } }