import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;


public class C {
	public static void main(String[] args)throws IOException
	{
//		Scanner br=new Scanner(System.in);
		Scanner br=new Scanner(new File("C-small-attempt0.in"));
		PrintWriter out=new PrintWriter(new File("c.out"));
		int cases=br.nextInt();
		for(int c=1;c<=cases;c++)
		{
			int a=br.nextInt();
			int b=br.nextInt();
			int count=0;
			for(int i=a;i<=b;i++)
			{
				for(int j=i+1;j<=b;j++)
				{
					if(recycled(i,j))
					{
						count++;
					}
				}
			}
			out.printf("Case #%d: %d\n",c,count);
		}
		out.close();
	}
	static boolean recycled(int a,int b)
	{
		StringBuilder one=new StringBuilder(Integer.toString(a)),two=new StringBuilder(Integer.toString(b));
		if(one.length()!=two.length())
			return false;
		for(int i=0;i<one.length();i++)
		{
			if(equals(one,two))
				return true;
			char temp=one.charAt(one.length()-1);
			one.deleteCharAt(one.length()-1);
			one.insert(0,temp);
		}
		return false;
	}
	static boolean equals(StringBuilder a,StringBuilder b)
	{
		for(int i=0;i<a.length();i++)
		{
			if(a.charAt(i)!=b.charAt(i))
				return false;
		}
		return true;
	}
}
