import java.util.*;
public class Main{
    public static void main(String[]args){
        Scanner sc=new Scanner(System.in);
        if(sc.hasNextInt()){
            System.out.print("Invalid input");
            return;
        }
        String s1=sc.nextLine().toLowerCase();
        String s2=sc.nextLine().toLowerCase();
        if(s1.isEmpty()||s2.isEmpty()){
             System.out.print("Invalid input");
            return;
        }
        if(s1.isLowerCase()||s2.isLowerCase()){
            System.out.print("Invalid input");
            return;
        }
        if(s1.length()!=s2.length()){
            System.out.print("Invalid input");
            return;
        }
        int count[]=new int[26];
        for(int i=0;i<s1.length();i++){
            count[s1.charAt(i)-'a']++;
            count[s2.charAt(i)-'a']--;
        }
        for(int i=0;i<26;i++){
            if(count[i]!=0){
                System.out.print("Not Anagram");
                return;
            }
        }
        System.out.print("Anagram");
    }
}