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.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;

public class ProblemC2 
{
	public boolean checked[] = new boolean[2000000];
	public int min, max;
	
	public static void main(String [] args)
	{
		new ProblemC2();
	}
	
	public ProblemC2()
	{
		try
		{
			String [] inputFiles = { "C-large" };//,"A-large" };
			BufferedReader in;
			PrintWriter out;
			for(int i = 0 ; i < inputFiles.length; i++)
			{
				in = new BufferedReader(new FileReader(inputFiles[i]));
				out = new PrintWriter(new FileWriter(inputFiles[i]+".out"),true);
				
				int numCases = Integer.parseInt(in.readLine());
				String [] items = null;
				for(int j = 0 ; j < numCases; j++)
				{
					checked = new boolean[2000000];
					items = in.readLine().split("\\s+");
					min = Integer.parseInt(items[0]);
					max = Integer.parseInt(items[1]);
					int total = 0;
					for(int x = min; x <= max; x++)
					{
						if(! checked[x])
							total+=checkRecycled(x);
					}
					out.println("Case #" + (j+1) + ": " + total);
				}
				in.close();
				out.close();
			}
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}

	private int checkRecycled(int x) 
	{
		int matches=1;
		checked[x]=true;
		if(x<10)
			return 0;
		
		int numChecks = 0;
		if(x>=1000000)
		{
			numChecks = 6;
		}
		else if(x>=100000)
		{
			numChecks = 5;
		}
		else if(x>=10000)
		{
			numChecks = 4;
		}
		else if(x>=1000)
		{
			numChecks = 3;
		}
		else if(x>=100)
		{
			numChecks = 2;
		}
		else
		{
			numChecks = 1;
		}
		
		String xstr=new String(""+x);
		for(int i=0; i<numChecks ; i++)
		{
			xstr=xstr.substring(xstr.length()-1)+""+xstr.substring(0,xstr.length()-1);
			if(xstr.startsWith("0"))
				continue;
			int tmp = Integer.parseInt(xstr);
			if(tmp<=2000000)
				checked[tmp]=true;
			if(x != tmp && tmp >= min && tmp <= max)
				matches++;
		}
		if(matches == 1)
			return 0;
		else if(matches == 2)
			return 1;
		else if(matches == 3)
			return 3;
		else if(matches == 4)
			return 6;
		else if(matches == 5)
			return 10;
		else if(matches == 6)
			return 15;
		else if(matches == 7)
			return 21;
		
		return 0;
	}

}
