import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Recycled {
	public static void main(String[] args) throws Exception{
		String inputFile = "C-small-attempt0.in";
		
		BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
		BufferedWriter output = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("output")));
		long num_cases = Long.parseLong(input.readLine());
		int current_case = 0;
		
		while (current_case < num_cases){
			current_case++;
			
			String[] fields = input.readLine().split(" ");
			int A = Integer.parseInt(fields[0]);
			int B = Integer.parseInt(fields[1]);
			int total = 0;
			
			for (int n = A; n < B; n++){
				for (int m = n+1; m <= B; m++){
					if (isRecycled(n,m)) total++;
				}
			}
			
			System.out.println("Case #" + current_case + ": " + total);
			output.write("Case #" + current_case + ": " + total + "\n");
		}
		output.close();
	}

	private static boolean isRecycled(int n, int m) {
		String sn = ""+n;
		String sm = ""+m;
		if (sn.length() != sm.length()) return false;
		int totaln = 0, totalm = 0;
		for (int i = 0; i < sn.length(); i++){
			totaln += sn.charAt(i);
			totalm += sm.charAt(i);
		}
		if (totaln != totalm) return false;
		for (int i = 0; i < sn.length()-1; i++){
			sm = sm.charAt(sm.length() - 1) + sm.substring(0, sm.length() - 1);
			if (sm.equals(sn)) return true;
		}
		return false;
	}
}

import java.util.* ;

public class RecycledNumbers {
	 public static void main(String args[]) throws Exception
	 {
	
	String inFileName = "C:\\Documents and Settings\\kumarxnx.BKNG\\Desktop\\CodeJam\\3\\in"; 
	 String outFileName = "C:\\Documents and Settings\\kumarxnx.BKNG\\Desktop\\CodeJam\\3\\out";

	
	
	 
	 FileReaderWriter fri = new FileReaderWriter(inFileName,FileReaderWriter.READ_MODE) ; 
	 FileReaderWriter fro = new FileReaderWriter(outFileName,FileReaderWriter.WRITE_MODE) ;
	 
	 int inputs = fri.readInt() ;
	 ArrayList <Long> nums ;
	 HashMap map ;
	 long low  ;
	 long high ;
	 
	 for(long i=0 ; i<inputs ; i++)
	 {
		nums =fri.readLongList();
		map = new HashMap() ;
		low = nums.get(0) ;
		high = nums.get(1) ;
	    
		for(long j=low;j<=high;j++)
		{
			getCombination(map,j,low,high) ;	
		}
		
		fro.writeLine("Case #"+(i+1)+": "+map.size()) ;
		
	 }
	 
	 
	 fri.close() ; 
	 fro.close() ;
	 
	 }
	 
	 public static void getCombination(HashMap map , long num , long low , long high)
	 {
		 String str = ""+num ;
		 char [] arr = str.toCharArray() ;
		 int len = arr.length ;
		 
		 long newNum ; 
		 for(int i=1 ; i<=len ; i++)
		 {
			 arr  = shiftByOne(arr) ;
			 if(arr[0]!='0')
			 {
			 newNum = Long.parseLong(new String(arr)) ;
			 if(newNum!=num && newNum>=low && newNum<=high)
		 	    {
				   if ( !
						   ( 
						       map.containsKey(""+num+","+newNum)  || 
						       map.containsKey(""+newNum+","+num)					        
					      )
					   )   
				      {
					   
					   
					   map.put(""+num+","+newNum,null) ;
					   
					
				   }
		    	 }
			 }
		 }
	 }
	 
	 public static char[] shiftByOne(char[] arr) 
	 {
		char c = arr[arr.length - 1] ;
		char cnew [] = new char[arr.length] ;
		 		 
		for(int i=1;i<cnew.length ; i++)
		{
			cnew[i] = arr[i-1] ; 
		}
		cnew[0] = c ;
		return cnew ;
	 }
	 
	
}
