/*
 * 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.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;


public class Recycled_Numbers_2 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String strFileName = "C-small-attempt0";
		String strInputFileName = strFileName + ".in";
		String strOutputFileName = strFileName + ".out";

		int iCaseNumber=1;
		
		try {
			////////////////////////////////////////////////////////////////
			BufferedReader in = new BufferedReader(new FileReader(strInputFileName));
			BufferedWriter out = new BufferedWriter(new FileWriter(strOutputFileName));
			String inString = "";
			String outString = "";

			String sTotalNumber = in.readLine();
			
			while ((inString = in.readLine()) != null) {
				System.out.println(inString);
				// µÎ °³ÀÇ ¼ýÀÚ·Î ÀÌ·ç¾îÁ® ÀÖ´Ù.
				String[] saRange = inString.split(" ");
				int iStart = Integer.parseInt(saRange[0]);
				int iEnd = Integer.parseInt(saRange[1]);
				System.out.println(String.format("S:[%d], E:[%d]", iStart, iEnd));
				
				ArrayList<Integer> listCompare = new ArrayList<>();
				int iCount = 0;
				
				for (int iNumber = iStart; iNumber <= iEnd; iNumber++) {
					
					// ¼öÀÇ ÀÚ¸´¼ö ¾ò±â
					int iGetDigit = iNumber;
					int iDigitCount = 0;
					while (iGetDigit > 0) {							
						iGetDigit /= 10;
						iDigitCount++;
					}
					
					//System.out.println(String.format("%d's Digit is %d",iNumber, iDigitCount));
					
					boolean bFound = false;
					
					// ºñ±³
					for (int idx = 0; idx < listCompare.size(); idx++) {
						int iCompareNumber = listCompare.get(idx);
												
						for (int iDigit = 1; iDigit <= iDigitCount-1; iDigit++) {
							int iFront = (int) (iNumber/(Math.pow(10, iDigit)));
							int iBack = (int) (iNumber%(Math.pow(10, iDigit)));
							int iModify = (int) (iBack * (Math.pow(10, iDigitCount-iDigit)) + iFront);
							
//							System.out.println(String.format("Check: iNumber:[%d], iDigit:[%d], iFront:[%d], iBack:[%d], iModify:[%d]"
//																		, iNumber, iDigit, iFront, iBack, iModify));
							
							if (iCompareNumber == iModify) {
								//System.out.println(String.format("Compare:[%d], iNumber:[%d], iModify[%d], iDigit[%d]", iCompareNumber, iNumber, iModify, iDigit));
								iCount ++;
								//listCompare.remove(idx);
								bFound = true;
								//break;
							}
							
						}
						
//						if (bFound) {
//							break;
//						}						
					}
					listCompare.add(iNumber);
					
				}
				
				System.out.println(String.format("Count:[%d]",iCount));
				
				outString = String.format("Case #%d: %d\n", iCaseNumber++, iCount); 
				System.out.print(outString);
				out.write(outString);
			}
			in.close();
			out.close();
			////////////////////////////////////////////////////////////////
		} catch (IOException e) {
			System.err.println("ERROR");
			System.err.println(e); // ¿¡·¯°¡ ÀÖ´Ù¸é ¸Þ½ÃÁö Ãâ·Â
			System.exit(1);
		}	     
	}

}
