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

public class C {
	public static void main(String[] args) throws Exception {
		String inputfilename = args[0];
		String outputfilename = args[1];
		BufferedReader br = new BufferedReader(new FileReader(inputfilename));
		BufferedWriter bw = new BufferedWriter(new FileWriter(outputfilename));
		int cases = Integer.valueOf(br.readLine());
		for(int i = 0; i < cases; i++) {
			String[] ele = br.readLine().split(" ");
			int A = Integer.valueOf(ele[0]);
			int B = Integer.valueOf(ele[1]);
			int result = C.solve(A,B);
			bw.write("Case #" + (i + 1) + ": " + result + "\n");
		}
		br.close();
		bw.close();
	}
	
	public static int solve(int A,int B) {
		int cnt = 0;
		//System.out.println("\nDoing " + A + " " + B);
		String Astr = String.valueOf(A);
		String Bstr = String.valueOf(B);
		for(int cur = A; cur <= B; cur++) {
			String cstr = String.valueOf(cur);
			//System.out.println("\n" + cstr + "\n");
			Set<String> tset = new HashSet<String>();
			for(int i = 1; i < cstr.length(); i++)
			{
				String tmp = cstr.substring(i) + cstr.substring(0,i);
				//System.out.println(" " + tmp);
				if(tmp.compareTo(cstr) > 0 && tmp.compareTo(Bstr) <= 0 && !tset.contains(tmp)) {
					cnt++;
					tset.add(tmp);
					//System.out.print(" " + cstr + "!!" +tmp);
				}
			}
		}
		return cnt;
	}
}