import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

import java.io.*;
class ProbC
{
	String calculate(int low,int up)
	{	String ans="";
		int anscount=0;
		int l=low;
		int u=up;
		for(int i=l;i<=u;i++)
		{
				String num=Integer.toString(i);
				for(int j=1;j<num.length();j++)
				{
					String first=num.substring(0,j);
					String second=num.substring(j,num.length());
					String now=second+first;
					//System.out.println(now);
					if(now.charAt(0)=='0')
					{
						
					}
					else
					{
						int comp=Integer.parseInt(now);
						if(comp<=up&&i<comp)
						{
							anscount=anscount+1;
						}
					}
			}
		}
	
				return Integer.toString(anscount);
	}

	public static void main(String args[]) 
	throws IOException 
	{
		ProbC obj=new ProbC();
		
		File ii = new File ("C-large.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("ProbCoutputlarge.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		
		for(int i=0;i<cases;i++)
		{
			String temp1 = br.readLine();
			String parts [] = temp1.split(" ");
			
			int low=Integer.parseInt(parts[0]);
			int up=Integer.parseInt(parts[1]);
			int uc=0,lc=0;
			int temp=low;
			while(temp>0)
			{
				int a=temp%10;
				temp=temp/10;
				uc++;
			}
			temp=low;
			while(temp>0)
			{
				int a=temp%10;
				temp=temp/10;
				lc++;
			}
			if(uc==lc)
			{
				System.out.println("A and B have same number of digits");
				String result=obj.calculate(low,up);
				String finalans="Case #"+(i+1)+":  "+result+System.getProperty("line.separator");
				dout.writeBytes(finalans);
			}
			else
			{
				System.out.println("A and B do not have same number of digits");
			}
		
		}
	}
}