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.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;

public class ProblemC {
	public static void main(String[] args) throws NumberFormatException, IOException{

		BufferedReader reader=new BufferedReader(new FileReader(new File(args[0])));

		int numTestCases=Integer.parseInt(reader.readLine());

		String[] split;

		for (int testCase=0; testCase<numTestCases; testCase++){
			split=reader.readLine().split("\\s+");
			
			int a=Integer.parseInt(split[0]);
			int b=Integer.parseInt(split[1]);
			
			String stra=String.valueOf(a);
			
			String curr;
			int currVal;
			
			int len=stra.length();
			
			Set<String> iCanHasPair=new HashSet<String>();
			
			int result=0;
			
			for (int i=a; i<=b; i++){
				curr=String.valueOf(i);
								
				boolean inRange;
								
				for (int k=1; k<len; k++){
					currVal=0;
					inRange=true;
					
					for (int j=0; j<len; j++){
						currVal+=((int)Math.pow(10, len-j-1))*(curr.charAt((j+k)%len)-'0');
						
						if (currVal>b){
							inRange=false;
							break;
						}
					}
					
					if (currVal<a)
						continue;
					
					if (!inRange)
						continue;
					
					
					if (i!=currVal){
						String key=i<currVal?i+":"+currVal:currVal+":"+i;
					
						if (!iCanHasPair.contains(key)){
							iCanHasPair.add(key);
							result++;
						}
					}

				}
				
			}
			
			
			System.out.println("Case #"+(testCase+1)+": "+result);
		}		
	}
}
