import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;


public class Problem2 {
	public static void main (String[] args) throws IOException {
		File file = new File("input1.txt");
		Scanner scan = null;
		try {
			scan = new Scanner(file);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		FileWriter fstream = null;
		try {
			fstream = new FileWriter("output.txt");
		} catch (IOException e) {
			e.printStackTrace();
		}
		BufferedWriter out = new BufferedWriter(fstream);
		
		int lineNumber;
		lineNumber = Integer.parseInt(scan.nextLine());
		for (int i = 0; i < lineNumber; i++) {
			Scanner lineScan = new Scanner(scan.nextLine());
			out.write("Case #" + (i + 1) + ": ");
			int a = lineScan.nextInt();
			int b = lineScan.nextInt();
			int total = 0;
			
			ArrayList<Integer> prev = new ArrayList<Integer>();
			
			for (int j = a; j <= b; j++) {
				String curr = String.valueOf(j);
				
				for (int k = 1; k < curr.length(); k++) {
					String second = curr.substring(k);
					String first = curr.substring(0, k);
					String afterStr = second + "" + first;
					int after = Integer.parseInt(afterStr);
					if (after > j && after <= b) {
						if (!prev.contains(after)) {
							total++;
							prev.add(after);
						}
					}	
				}
				prev.clear();
			}
			out.write(total + " \n");
		}
		out.close();
		
	}

}
