/*
 * 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;


public class GoogleNumbers {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		
		int p = scan.nextInt();
		
		int n, m;
		for(int i = 1; i <= p; i++) {
			int total = 0;
			n = scan.nextInt();
			m = scan.nextInt();
			for( ; n < m; n++) {
				for(int j=n+1; j <= m; j++) {
					
					if(recycled(n+"",j+""))
						total++;
					
				}
			}
			System.out.println("Case #"+i+": "+total);
		}
		
		
	}
	public static boolean recycled(String n, String m) {
		char[] cN = n.toCharArray();
		char[] cM = m.toCharArray();
		
		int tot1 = 0;
		int tot2 = 0;
		for(int i = 0; i < cN.length; i++) {
			tot1+= cN[i];
			tot2+= cM[i];
		}
		if(tot1!=tot2)
			return false;
		
		
		for(int j=0; j < cN.length; j++) {
			boolean found = true;
			for(int k=0; k < cN.length; k++) {
				if(cN[k] != cM[(k+j)%cN.length]) {
					found = false;
					break;
				}
			}
			if(found)
				return true;
		}
		
		return false;
		
	}
}
