/*
 * 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.util.Scanner;
import java.util.TreeMap;


public class RecycledNumbers {
	public static void main(String[]args){
		Scanner sc = new Scanner(System.in);
		//Read in the T int -- Test Cases
		int T = Integer.parseInt(sc.nextLine());
		for (int t = 1; t <= T; t++) {
			int num = 0;
			//START OF CODE
			int a = sc.nextInt();
			int b = sc.nextInt();
			int focus = a;
			
			for (int i = 0; focus < b; i++) {
				String f = focus + "";
				boolean distinct = true;
				/*all:for (int j = 0; j < f.length(); j++) {
					for (int j2 = j+1; j2 < f.length(); j2++) {
						if(f.charAt(j) == f.charAt(j2)){
							distinct = false;
							break all;
						}
					}
				}
				distinct = true;*/
				if(distinct){
					for (int j = 0; j < f.length() - 1; j++) {
						f = f.charAt(f.length()-1) + f.substring(0,f.length()-1);
						int fs = Integer.parseInt(f);
						if(fs <= b && f.charAt(0) != '0' && fs > focus){
							//System.out.println(focus+ " "+ f);
							num++;
						}
					}	
				}
				
				focus++;
			}
			//END OF CODE
			//OUTPUT
			System.out.format("Case #%d: %d\n", t, num);
		}
	}
}
