/*
 * 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.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class C {

	private void work() throws IOException {

		Scanner sc = new Scanner(new FileReader("C-small-attempt0.in"));
		PrintWriter pw = new PrintWriter(new FileWriter("C-small-attempt0.out"));
		Set<Integer> set = new HashSet<Integer>();
		int nc = sc.nextInt();
		for (int tc = 1; tc <= nc; tc++) {
			int a = sc.nextInt();
			int b = sc.nextInt();
			int len = Integer.toString(a).length();
			char[] c = new char[len];
			int res = 0;
			for (int i = a; i <= b; i++) {
				set.clear();
				int t = i;
				for (int j = len - 1; j >= 0; j--) {
					c[j] = (char) (t % 10 + '0');
					t /= 10;
				}
				for (int j = 0; j < len - 1; j++) {
					char tmp = c[len - 1];
					for (int k = len - 1; k > 0; k--) {
						c[k] = c[k - 1];
					}
					c[0] = tmp;
					int blah = Integer.valueOf(new String(c));
					if (blah > i && blah <= b)
						set.add(blah);
				}
				res += set.size();
			}
			pw.printf("Case #%d: %d\n", tc, res);
		}
		pw.close();
	}

	public static void main(String[] args) throws IOException {
		new C().work();
	}

}
