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.problems;

import google.loader.Challenge;
import google.loader.ChallengeReader;

import java.util.ArrayList;
import java.util.List;


public abstract class AbstractReader implements ChallengeReader {

	private String[] lines;
	private List<Challenge> challenges;
	private int actualLine;

	public AbstractReader(){
		challenges = new ArrayList<Challenge>();
	}
	
	
	protected void setLines(String[] input) {
		lines=input;
	}

	protected String[] getLines(){
		return lines;
	}
	
	protected int getNumberOfChallenges() {
		return Integer.parseInt(lines[0]);
	}
	
	@Override
	public List<Challenge> createChallenges(String[] input) {
		setLines(input);
		readChallenges();
		return challenges;
	}

	private void readChallenges() {
		int numOfChallanges = getNumberOfChallenges();
		setActualLine(1);
		actualLine = 1;
		for(int i=1;i<=numOfChallanges; i++){
			challenges.add(createChallenge(i));
		}
	}
	
	protected int[] asInt(String values) {
		String[] split = values.split(" ");
		int res [] = new int[split.length];
		for(int i=0;i<split.length;i++){
			res[i]=Integer.parseInt(split[i]);
		}
		return res;
	}

	protected List<Integer> asIntList(String values) {
		List<Integer> res = new ArrayList<Integer>();
		for(int i : asInt(values)){
			res.add(i);
		}
		return res;
	}
	

	protected abstract Challenge createChallenge(int i) ;
	
	protected void setActualLine(int i) {
		actualLine =i;
	}
	protected int getActualLine(){
		return actualLine;
	}
	
}
