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.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


public class RecycledNumbers 
{
public static void main(String[] args) throws IOException {
	FileWriter wr=new FileWriter("Output.txt");
	BufferedWriter buff=new BufferedWriter(wr);
	
	FileReader read=new FileReader("C-large.in");
	BufferedReader buffr=new BufferedReader(read);
	
	String str;
	str=buffr.readLine();
	
	int n=Integer.parseInt(str);
	int j=1;
	int a,b;
	int num,lower,upper;
	long total;
	while(j<=n)
	{
		
		str=buffr.readLine();
		Scanner sc=new Scanner(str);
		sc.useDelimiter(" ");
		a=sc.nextInt();
		b=sc.nextInt();
		
		upper=b;
		lower=a;
		total=0;
		while(a<=b)
		{
		
		String first=Integer.toString(a);
	String orig=first;
	String newStr;
	int curr=Integer.parseInt(first);
		if(first.length()!=1)
		{
			
			while(true)
			{
				
				first=first.charAt(first.length()-1)+first.substring(0,first.length()-1);
				if(first.equals(orig))
					break;
				
				if(!first.startsWith("0"))
				{
				num=Integer.parseInt(first);
				if(num<=upper && num>=lower && num>curr)
					++total;	
				}
				
			}
		}
		++a;
		}
		StringBuffer temp = new StringBuffer("Case #"+j+": ");
		temp=temp.append(Long.toString(total));
		buff.write(temp.toString());
		buff.newLine();
		++j;
	}
	
	buff.close();
}
}
