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.InputStreamReader;
import java.util.StringTokenizer;


public class Main_Recycled {
	static int a,b;
	public static void main(String[] args)throws Exception {
		File _=new File("recycled.in");
		BufferedReader br=_.exists()? new BufferedReader(new FileReader(_)):new BufferedReader(new InputStreamReader(System.in));
		int t=Integer.parseInt(br.readLine().trim());
		StringTokenizer st;
		
		boolean visited[];
		int size,total;
		int temp;
		for (int i = 1; i <= t; i++) {
			total=0;
			st=new StringTokenizer(br.readLine());
			a=Integer.parseInt(st.nextToken());
			b=Integer.parseInt(st.nextToken());
			visited=new boolean[b+1];
			for (int j = a; j <= b; j++) {
				size=0;
				temp=j;
				while(!visited[temp]){
					visited[temp]=true;
					size++;
					temp=next(temp);
				}
				total+=size*(size-1)/2;
				
				
			}
			System.out.println("Case #"+i+": "+total);
		}
	}

	private static int next(int temp) {
		String str=""+temp;
		do{
			str=str.substring(1,str.length())+str.charAt(0);
		}
		while(Integer.parseInt(str)<a||Integer.parseInt(str)>b);
		return Integer.parseInt(str);
	}
}
