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.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class c {
	public static void main(String[] args){

		Scanner in = new Scanner(System.in);
		int numOfLines = new Integer(in.nextLine());
		for (int i= 1; i<=numOfLines; i++)
		{
			int res =0;
			String [] lineValues = in.nextLine().split(" ");
			int n = new Integer(lineValues[0]);
			int m = new Integer(lineValues[1]);
			
			for (Integer j = n; j<m; j++)
			{
				String nS=j.toString();
				if (nS.length()<2) continue;
				List<Integer> parellesBones = new ArrayList<Integer>();
				for (int k = nS.length();k>=1;k--)
				{
					String endPart=nS.substring(k);
					String beginPart=nS.substring(0,k);
					Integer recycled = new Integer(endPart+beginPart);
					
					if (recycled >m) continue;
					if (recycled <j) continue;
					if (recycled == j)continue;
					if (parellesBones.indexOf(recycled)!=-1 )continue;
					if (recycled >j) 
					{
						parellesBones.add(recycled);
						res++;
					}
				}
								
			}
			
			System.out.format("Case #%d: %d\n", i, res);
		}
		return;
	}
}