import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Scanner;


public class RecycledNumbers {
	static int[] pow = { 1,10,100,1000,10000,100000,1000000,10000000,100000000,1000000000};
	public static void main(String[] args) {
		PrintStream theOut=null;
		try {
			FileOutputStream o = new FileOutputStream("./output.txt", false);
			theOut = new PrintStream(o);
		}
		catch (Exception e) {
			e.printStackTrace();
			return;
		}


		Scanner sc=null;
		try {
			//sc = new Scanner(new File("./C-small.in"));
			//sc = new Scanner(new File("/home/duck/Downloads/B-large.in"));
			sc = new Scanner(new File("/home/duck/Downloads/C-small-attempt0.in"));
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}

		int nbCases = sc.nextInt();

		mainloop: for(int curCase=1; curCase <= nbCases ;++curCase) {
			sc.nextLine();
			long res = 0;
			int min = sc.nextInt();
			int max = sc.nextInt();
			ArrayList<Integer> found = new ArrayList<Integer>();

			for(int i=min; i <= max ;++i) {
				int nbDigit = (int)Math.ceil(Math.log10((double)i));
				found.clear();
				for(int j= 1; j < nbDigit ; j++) {
					int low  =  i% pow[j];
					int swap = low * pow[nbDigit - j] + (i-low) /pow[j];
					if(swap > i && swap <= max && !found.contains(swap)) {
						found.add(swap);
						++res; 
						//System.out.println(i+" "+swap);
					}
				}
			}
			/*******************************************************************/
			theOut.format("Case #%d: %d\n",curCase,res);
			System.out.format("Case #%d: %d\n",curCase,res);
		}

	}
}
