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.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;


public class RecycledNumbersSolver {
	public static void main(String[] args) {
		try {
			FileInputStream fIS = new FileInputStream(args[0]);
			BufferedReader r = new BufferedReader(new InputStreamReader(fIS));
			
			int t = Integer.parseInt(r.readLine());
			for (int i=0;i<t;++i) {
				System.out.print("Case #" + (i+1) + ": ");
				if (i < t-1)
					System.out.println(solveTest(r.readLine()));
				else
					System.out.print(solveTest(r.readLine()));
			}
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}			
	}

	private static int solveTest(String line) {
		Map<Integer, List<Integer>> matches = new HashMap<Integer, List<Integer>>();
		
		String[] nums = line.split(" ");
		int a = Integer.parseInt(nums[0]);
		int b = Integer.parseInt(nums[1]);
		Integer bInt = b;
		
		int result = 0;
		
		for (int i=a;i<b;++i) {
			result += solveTest(i, bInt, matches);
		}
		
		return result;
	}

	private static int solveTest(Integer n, Integer max, Map<Integer, List<Integer>> matches) {
		String txt = n.toString();
		int digits = txt.length();
		
		int counter = 0;
		
		for (int i=1;i<digits;++i) {
			Integer nNum = getRecycled(txt, i);
			if (nNum.compareTo(n) > 0 && nNum.compareTo(max) <= 0) {
				if (matches.get(n) == null)
					matches.put(n, new LinkedList<Integer>());
				
				List<Integer> list = matches.get(n);
				if (!list.contains(nNum)) {
					list.add(nNum);
					++counter;
				}
			}
		}
		
		return counter;
	}

	private static Integer getRecycled(String txt, int shift) {
		StringBuilder bld = new StringBuilder();
		
		for (int i=txt.length()-shift;i<txt.length();++i)
			bld.append(txt.substring(i, i+1));
		
		for (int i=0;i<txt.length()-shift;++i)
			bld.append(txt.substring(i, i+1));
		
		return Integer.parseInt(bld.toString());
	}
}
