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 codejam.common;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author chenling
 */
public class FileUtil {

    public static List<String> readLines(String fileName) {
        List<String> result = new ArrayList<String>();
        FileReader in = null;
        try {
            in = new FileReader(fileName);
            BufferedReader reader = new BufferedReader(in);
            String line = null;
            while ((line = reader.readLine()) != null) {
                if (line.trim().length() > 0) {
                    result.add(line);
                }
            }
        } catch (Exception ex) {
            throw new RuntimeException(ex);
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        return result;
    }

    public static void writeLines(String fileName, List<String> lines) {
        FileWriter writer = null;
        try {
            writer = new FileWriter(fileName);
            PrintWriter printWriter = new PrintWriter(writer);
            for (String line : lines) {
                printWriter.println(line);
            }
        } catch (IOException ex) {
            Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if (writer != null) {
                try {
                    writer.close();
                } catch (IOException ex) {
                    Logger.getLogger(FileUtil.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
}
