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.*;

class qu3{
public static void main(String arg[])throws Exception
{
File f=new File("/Users/rishabhsonthalia/Downloads/C-small-attempt0.in.txt");
FileInputStream fin=new FileInputStream(f);
File fo=new File("opt.txt");
FileOutputStream fout=new FileOutputStream(fo);
BufferedWriter bwr=new BufferedWriter(new OutputStreamWriter(fout));
BufferedReader br=new BufferedReader(new InputStreamReader(fin));
String g="";

long len=Long.parseLong(br.readLine());
long ca=1;
long a,b;
String e="";
long n,m;
while(--len >=0)
{
long count=0;
g=br.readLine();
a=Long.parseLong(g.substring(0,g.indexOf(" ")) );
b=Long.parseLong( g.substring(g.indexOf(" ")+1,g.length())) ;

for(long i=a;i<=b;i++)
{
n=i;
	for(long j=0 ; j<(i+"").length()-1; j++)
	{ 
		
		 m=shift(n);
		if(m>-1 & i<m & m <=b)
		{count++;
		}
		n=m;
		
	}
}


bwr.write("Case #"+(ca++)+": "+count);
bwr.newLine();
bwr.flush();
}//while

}

public static long shift(long x)
{

	String s;
	if(x<0)
	s="0"+(-x)+"";
	else
	s=x+"";
	String ss=s.charAt(s.length()-1)+s.substring(0,s.length()-1);
	if(x%10==0)
	return(-Long.parseLong(ss));
	return (Long.parseLong(ss));
}
}