/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc=new Scanner("the quick brown fox jumps over the lazy dog");
        String s=sc.nextLine();
	    int len=s.length();
	    //System.out.println(s); - the
	    int i;
	    char c;
		boolean arr[] = new boolean[26];
		s = s.replace(" ","");
		boolean success = true;
		for(c = 'a';c <= 'z'; c++) 
		{
			if(!s.contains(String.valueOf(c))) 
			{
			    System.out.println(String.valueOf(c));
				success = false;
			    break;
			}
		}
		if(success)
		{
		 	System.out.println("Special");
		}
		else System.out.println("Not Special");
	}
}

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