package codejam;

import java.util.*;
import java.io.*;

public class RecycledNumbers {
	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new FileReader("in.txt"));
		PrintWriter out = new PrintWriter(new File("out.txt"));
		
		int T = Integer.parseInt(in.readLine());
		for (int t = 1; t <= T; ++t) {
			String[] parts = in.readLine().split("[ ]+");
			int A = Integer.parseInt(parts[0]);
			int B = Integer.parseInt(parts[1]);
			
			int cnt = 0;
			for (int i = A; i < B; ++i) {
				String str = String.valueOf(i);
				int n = str.length();
				String res = "";
				Set<Integer> seen = new HashSet<Integer>();
				for (int j = n - 1; j > 0; --j) {
					res = str.substring(j) + str.substring(0, j);
					int k = Integer.parseInt(res);
					if (k > i && k <= B) {
						//System.out.println("(" + i + ", " + k + ")");
						if (!seen.contains(k)) {
							++cnt;
							seen.add(k);
						}
					}
				}
			}

			out.println("Case #" + t + ": " + cnt);
		}
		
		in.close();
		out.close();
		System.exit(0);
	}
}

import java.io.*;
import java.util.*;
import static java.lang.Integer.*;


public class RecycledNumbers {
	

	public static void main(String[] args) throws IOException {
		BufferedReader scan = new BufferedReader(new InputStreamReader(
				System.in));
		int n = parseInt(scan.readLine());
		for (int i = 0; i < n; i++) {
			String[] line = scan.readLine().split(" ");
			int inf = parseInt(line[0]);
			int sup = parseInt(line[1]);
			int res = 0;
			for(int j = inf;j<=sup;j++){
				for (int j2 = j+1; j2 <= sup; j2++) {
					res+=check(j,j2);
				}
			}
			System.out.println("Case #"+(i+1)+": "+res);
		}
	}
	
	public static int check(int a,int b){
		int res = 0;
		int tama = count(a);
		int tamb = count(b);
		String sa = (a+"");
		String sb = (b+"");
		if(tama==tamb){
			for (int i = 0; i <tama; i++) {
				if(sa.charAt(i)==sb.charAt(0)){
					String aux = sa.substring(i,sb.length())+sa.substring(0,i);
					if(sb.equals(aux)){
						return 1;}
				}
			}
		}
		return res;
	}
	
	public static int count(int a){
		int res = 0;
		while(a!=0){
			a=a/10;
			res++;
		}
		return res;
	}
}
