/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.File;
import java.io.FileInputStream;
import java.util.Scanner;

/**
 *
 * @author imgps
 */
public class C {
    public static void main(String args[]) throws Exception{
        int A,B;
        int ctr = 0;
        int testCases;
        
        Scanner sc = new Scanner(new FileInputStream("C-small-attempt0.in "));
        testCases = sc.nextInt();
        int input[][] = new int[testCases][2];
        for(int i=0;i<testCases;i++)
        {
          //  System.out.print("Enter input A B: ");
            input[i][0] = sc.nextInt();
            input[i][1] = sc.nextInt();
            
        }
  

for(int k=0;k<testCases;k++){
      ctr = 0;
      A = input[k][0];
      B = input[k][1];
        for(int i = A;i<=B;i++){
            int num = i;
            int nMul = 1;
            int mul = 1; 
            int tnum = num/10;
            while(tnum > 0){
                mul = mul *10;
                tnum= tnum/10;
            }
            tnum = num;
            int n = 0;
            while(tnum > 0 && mul >= 10){
                nMul = nMul * 10;
                n = (num % nMul) * mul + (num / nMul);
                mul = mul / 10;
                tnum = tnum / 10;
                for(int m=num;m<=B;m++){
                    
                    if(n == m && m > num){
                        ctr++;
                    }
                }
                
                
                
         
            }
        }
        System.out.println("Case #"+(k+1)+": "+ctr);
        
    }
    }
}

import java.awt.Point;
import java.util.*;

public class Recycle {

    public static void main(String[] args) {
        Recycle r = new Recycle();
        Scanner in = new Scanner(System.in);
        int cases = in.nextInt();
        for (int i = 0; i < cases; i++) {
            System.out.printf("Case #%d: %d\n", i+1, r.solve(in));
        }
    }
    
    private int solve(Scanner in) {
	HashSet<Point> used = new HashSet<Point>();
	int A = in.nextInt();
	int B = in.nextInt();
	int count = 0;
	for (int i = A; i <= B; i++) {
	    String s = Integer.toString(i);
	    for (int k = 1; k < s.length(); k++) {
		String front = s.substring(0, k);
		String sub = s.substring(k);
		String reconstr = sub + front;
		if (reconstr.startsWith("0") || reconstr.equals(s)) continue;
		int reconstructed = Integer.parseInt(reconstr);
		if (reconstructed >= i) continue;
		if (used.contains(new Point(i, reconstructed))) continue;
		if (A <= reconstructed && reconstructed <= B) {
		    used.add(new Point(i, reconstructed));
		    count++;
		}
	    }
	}
	return count;
    }

}