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.ArrayList;
import java.util.Arrays;
public class Problem3
{
    public void solve(){
        ReadWriter rw = new ReadWriter();
        ArrayList<String> input = rw.readFile("C-small-attempt0.in");
        ArrayList<String> ans = new ArrayList<String>();
        int num;
        boolean first = true;
        int count=0;
        for(String s : input){
            if(first){
                num=Integer.parseInt(s);
                first=false;
            }
            else{
                String[] nums = s.split(" ");
                ans.add("Case #"+count+": "+countResults(nums));
            }
            count++;
        }
        rw.writeFile(ans, "output3.txt");
    }
    public int countResults(String[] nums){
        ArrayList<String> checked = new ArrayList<String>();
        int min = Integer.parseInt(nums[0]);
        int max = Integer.parseInt(nums[1]);
        int temp = min;
        int count=0;
        while(temp<max){
            String s = ""+temp;
            for(int i = 0;i<s.length();i++){
                if(s.substring(i,i+1).equals("0")){
                    continue;
                }
                String x = s.substring(i,s.length())+s.substring(0,i);
                
                int comp = Integer.parseInt(x);
                if(comp>temp&&comp<=max&&checked.indexOf(""+temp+" "+x)==-1){
                    count++;
                    System.out.println(""+temp+" "+comp);
                    checked.add(""+temp+" "+x);
                }
            }
            temp++;
        }
        return count;
    }
}
