import java.util.Scanner;

class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int t=sc.nextInt();
		int casos=1, a, b, n, m, cont;
		while(t!=0){
			a=sc.nextInt();
			b=sc.nextInt();
			if(a>b){
				int aux=a;
				a=b;
				b=aux;
			}
			System.out.printf("Case #%d: ",casos++);
			if(a==b){
				System.out.printf("%d\n",0);
			}else{
				cont=0;
				for(n=a;n<b;n++){					
					for(m=n+1;m<=b;m++){					
						if(isRecycled(n,m)) cont++;
					}
				}
				System.out.printf("%d\n",cont);
			}
			t--;
		}		
	}
	public static boolean isRecycled(int n1, int n2){
		String s1, s2, aux;
		s1 =  String.valueOf( n1 );
		s2 =  String.valueOf( n2 );		
		boolean r = false;		
		for(int i=0;i<s1.length();i++){
			aux="";
			aux=s1.substring(i,s1.length())+s1.substring(0,i);
//			System.out.println(aux);
			if(aux.equals(s2)){
				r=true;
				break;
			}
		}		
		return r;
	}
}

package google.loader;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.List;

public class ChallengeLoader {

	private List<Challenge> challenges;
	private final ChallengeReader reader;


	public ChallengeLoader(ChallengeReader reader){
		this.reader = reader;
	}


	public List<Challenge> load(String aPath){
		try{
			String input = readFileAsString(aPath);
			readChallenges(input);
			return 	challenges;
		}
		catch(Exception e){
			throw new RuntimeException(e);
		}
	}


	private String readFileAsString(String filePath) throws java.io.IOException{
		byte[] buffer = new byte[(int) new File(filePath).length()];
		BufferedInputStream f = null;
		try {
			f = new BufferedInputStream(new FileInputStream(filePath));
			f.read(buffer);
		} finally {
			if (f != null) try { f.close(); } catch (IOException ignored) { }
		}
		return new String(buffer);
	}


	private void readChallenges(String input) {
		String delimiter;
		if(input.indexOf("\r\n")>0){
			delimiter="\r\n";
		}else{
			delimiter="\n";
		}
		String[] lines = input.split(delimiter);
		challenges = reader.createChallenges(lines);
	}


	public String getResult() {
		StringBuffer res = new StringBuffer();
		for(Challenge challenge : challenges){
			res.append(challenge.getResult());
		}
		return res.toString();
	}

}