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 com.renoux.gael.codejam.utils;

import java.io.Closeable;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;


public class Output implements Closeable {

    private static String lineSeparator = System.getProperty("line.separator");

    private FileWriter writer;


    private Output(File file) {
        try {
            writer = new FileWriter(file);
        } catch (IOException e) {
            throw new TechnicalException(e);
        }
    }

    public static Output open(File file) {
        System.out.println("======== " + file);
        return new Output(file);
    }

    public void writeLine(String text) {
        System.out.println(text);
        try {
            writer.write(text);
            writer.write(lineSeparator);
        } catch (IOException e) {
            throw new TechnicalException(e);
        }
    }

    public void write(String text) {
        System.out.print(text);
        try {
            writer.write(text);
        } catch (IOException e) {
            throw new TechnicalException(e);
        }
    }

    public void writeLine(Object... text) {
        try {
            for (Object s : text) {
                System.out.print(s);
                writer.write(s.toString());
            }
            System.out.println();
            writer.write(lineSeparator);
        } catch (IOException e) {
            throw new TechnicalException(e);
        }
    }

    public void write(Object... text) {
        try {
            for (Object s : text) {
                System.out.print(s);
                writer.write(s.toString());
            }
        } catch (IOException e) {
            throw new TechnicalException(e);
        }
    }

    public void close() {
        System.out.println("================ closed");
        try {
            writer.close();
        } catch (IOException e) {
            throw new TechnicalException(e);
        }
    }

}
