/*
 * 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.*;
import java.io.*;
import java.lang.Number;

public class number {
	public static void main(String[] args) throws FileNotFoundException {
		Scanner fileReader = new Scanner(new File("C-small-attempt0.in"));
		PrintStream output = new PrintStream(new File("outputAwesome2.txt"));
		

		// Process file
		int repetitions = fileReader.nextInt();
		for(int i = 1; i <= repetitions; i++) {
			output.print("Case #" + i + ": ");
			int start = fileReader.nextInt();
			int stop = fileReader.nextInt();
			
			if (start < 10 || stop < 10) {
				output.println("0");
			} else {
				int digits = 0;
				int foo = start;
				while (foo != 0) {
					foo = foo / 10;
					digits++;
				}
				
				int count = 0;

				for(int j = start; j <= stop; j++) {
					String number = j + "";
					for(int k = 1; k < digits; k++) {
						// number = 10, k = 2
						String stuff = number.substring(1) + number.charAt(0);
						if(!stuff.equals(number)) {
							number = stuff;
							//System.out.println(number);
							if(Integer.parseInt(number) <= stop && Integer.parseInt(number) >= start){
								//System.out.println("yes");
								count++;
							}
						}
					}
				}
				output.println(count / 2);
			}
		}
	}
}