import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}

import java.io.*;
import java.lang.*;
import java.util.*;
class GCJ {
    public static void main(String[] args) {
		
		try {
			PrintWriter out = new PrintWriter(new FileWriter("1.txt"));
			
			BufferedReader in = new BufferedReader(new FileReader("1.in")); 
			in.readLine();
			
			int counter = 1;
			while (in.ready()) { 
				String s = in.readLine();
				out.print("Case #" + Integer.toString(counter) + ": ");
				counter++;
				
				String[] n = s.split(" ");

				int A = Integer.parseInt(n[0]);
				int B = Integer.parseInt(n[1]);
				int D = B - ((B - A)/10);
				
				if(Integer.toString(D).length() > 2)
					D = B - (int) Math.pow(10, Integer.toString(D).length() - 2);
				else D = B;
				
				int number = 0;
				//System.out.println(D);
				
				for(int i=A; i<B;i++) {
					String a = Integer.toString(i);
					StringBuffer p = new StringBuffer(a);
					
					if(a.length() == 1 || a.replace(a.charAt(0), ' ').trim().length() <= 0) {
						continue;
					}
					
					List<Integer> list = new ArrayList<Integer>();
					for(int c=1;c<a.length();c++)
					{
						p.append(p.substring(0,1));
						p.delete(0,1);
						if(p.charAt(0) == '0') continue;
						
						int t = Integer.parseInt(p.toString());
						if(t >= A && t <= B && t > i && !list.contains(t)
							) {
							//out.print(i);
							//out.print(",");
							//out.println(t);
							list.add(t);
							number++;
						}
					}
				}

				out.println(Integer.toString(number));
				//System.out.println(Integer.toString(number));
			}

			in.close();
			out.close();
		
		} catch (IOException e) {
			System.err.println("Caught IOException: " + e.getMessage());
		}
    }
}