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.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;


public class Google2 {
	public static void main(String[] args) throws NumberFormatException, IOException {
        FileInputStream fstream = new FileInputStream("/tmp/input.txt");
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        
        int cases = Integer.parseInt(br.readLine());
     
        for(int mCas=0; mCas<cases; mCas++){
            
        	String l = br.readLine();
            String pair[] = l.split(" ");
            int a = Integer.parseInt(pair[0]);
            int b = Integer.parseInt(pair[1]);

        
        	//int a=45;
        	//int b=72;
			int c=0;
			
			for(int i=a; i<b; i++){
				for(int j=i+1; j<=b; j++){
					if(test(i,j)){
						c++;
					}
				}
			}		
			System.out.println("Case #"+(mCas+1)+": "+c);
        }
		//test();
	}
	
	static boolean test(int a, int b){
		String as = Integer.toString(a);
		String bs = Integer.toString(b);		
		for(int i=bs.length(); i >1; i-- ){
			String n="";
			int j=i;
			do{				
				n+=bs.charAt(j-1);
				if(j==bs.length())
					j=0;
				j++;
			}while(j!=i);
							
			if(n.equals(as)){
//				System.out.println("("+a+", "+b+") "+n);
				return true;
			}						
		}		
		return false;	
	}

}
