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 core;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;


public abstract class Template {

	/************* TO BE IMPLEMENTED ******************************************/

	public abstract void feedData(ExtendedBufferedReader iR); 

	public abstract StringBuffer applyMethods();

	/**************************************************************************/

	public void readData(File iFile){

		try {

			FileReader aReader = new FileReader(iFile);
			ExtendedBufferedReader aBufferedReader = new ExtendedBufferedReader(aReader);

			feedData(aBufferedReader);

			aBufferedReader.close();

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

	public void writeResult(File iFile,StringBuffer iResult){

		System.out.println(iResult.toString());

		try {

			FileWriter aWriter = new FileWriter(iFile);

			aWriter.write(iResult.toString());

			aWriter.close();

		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

	public void play(String[] args) {

		if (args.length>1) {
			File  aFile = new File(args[0]);

			readData(aFile);

			StringBuffer result = applyMethods();

			File aResultFile= new File(args[1]);

			writeResult(aResultFile,result);

		} else {
			System.out.println("Your a bastard ! missing argument !");
		}	

	}

}
