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.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class ProblemC {
	
	public static void main(String[] args){
		
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		
		try{
			
			String line = in.readLine();

			int numLines = Integer.parseInt(line);

			for(int i = 1; i <= numLines; i++){
				
				System.out.print("Case #" + i + ": ");
				
				line = in.readLine();
				
				String[] nums = line.split(" ");
				
				int A = Integer.parseInt(nums[0]);
				int B = Integer.parseInt(nums[1]);
				
				int size = nums[0].length();
				
				int count = 0;
				
				for(int n = A; n < B; n++){
					String nStr = String.valueOf(n);
					ArrayList<String> pairs = new ArrayList<String>();
					for(int k = 1; k < size; k++){
						String mStr = nStr.substring(k, size) + nStr.substring(0, k);
						int m = Integer.parseInt(mStr);
						if(m > n && m <= B){
							String nm = n + "," + m;
							if(!pairs.contains(nm)){
								pairs.add(nm);
								count++;
							}
						}
					}
				}
				
				System.out.println(count);
			}
		}catch(IOException e){
			
		}
	}
}