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);
		}

	}
}

package googleJam;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.HashSet;
import java.util.Scanner;

public class RecycledNumbers 
{

	public static void main(String[] args) 
	{
		Scanner scan = null;
		try
		{
			scan = new Scanner(new File(args[0]));
		}
		catch (FileNotFoundException e)
		{
			System.err.println("File not found!");
			return;
		}
		if (!scan.hasNext())
		{
			System.err.println("Nothing in File!");
			return;
		}
		int testCases = Integer.parseInt(scan.nextLine());
		int lower;
		int upper;
		int move;
		int d;
		int total;
		int zeroes;
		int num = 1;
		int first;
		HashSet<Integer> set;
		while(scan.hasNext())
		{
			System.out.print("Case #" + num + ": ");
			total = 0;
			lower = scan.nextInt();
			upper = scan.nextInt();
			for (int x = lower; x <= (upper); x++)
			{
				set = new HashSet<Integer>();
				zeroes = 1;
				move = x;
				while (move > 9)
				{
					move = move/10;
					zeroes = zeroes * 10;
				}
				int limit = zeroes;
				for(int n = 10; n < (limit*10); n = n * 10)
				{

					move = x/n;
					d = x % n;
					d = d * zeroes;
					d = d + move;
					zeroes = zeroes / 10;
					if (d < x && d >= lower && !set.contains(d) && d > 9)
					{
						total++;
						//System.out.println(d + " , " + x);
						set.add(d);
					}
				}
			}
			num++;
			System.out.print(total);
			if (scan.hasNext())
			{
				System.out.println();				
			}
		}
	}

}
