import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.*;
import java.util.HashSet;

public class Solution {
	public static void main(String[] args) throws IOException {
		StreamTokenizer in = new StreamTokenizer(new BufferedReader (new FileReader("input.in")));
		PrintWriter out = new PrintWriter(new File("output.out"));
		
		in.nextToken();
		int t = (int)in.nval;
		for (int i = 0; i<t; i++){
			out.print("Case #" + (i+1) + ": ");
			int ans = 0;
			in.nextToken();
			int a = (int)in.nval;
			in.nextToken();
			int b = (int)in.nval;
			for (int j = a; j<=b; j++){
				int n = j;
				HashSet<Integer> set = new HashSet<Integer>();
				StringBuilder sN = new StringBuilder((new Integer(j)).toString());
				for (int k = 0; k<sN.length()-1; k++){
					sN.insert(0, sN.charAt(sN.length()-1));
					sN.deleteCharAt(sN.length()-1);
					if (sN.charAt(0) != '0') {
						int m = Integer.valueOf(sN.toString());
						if (n<m && m>=a && m<=b && !set.contains(new Integer(m))) {
							ans++;
							set.add(m);
						}
					}
				}
			}
			out.println(ans);
		}
		out.close();
	}
}
