import java.io.FileInputStream;
import java.util.HashMap;
import java.util.Scanner;
import java.util.TreeSet;

// Recycled Numbers
// https://code.google.com/codejam/contest/1460488/dashboard#s=p2

public class C {

	private static String process(Scanner in) {
		int A = in.nextInt();
		int B = in.nextInt();
		int res = 0;
		int len = Integer.toString(A).length();
		for(int n = A; n < B; n++) {
			String str = Integer.toString(n);
			TreeSet<Integer> set = new TreeSet<Integer>();
			for(int i = 1; i < len; i++) {
				int m = Integer.parseInt(str.substring(i, len) + str.substring(0, i));
				if ( m > n && m <= B && ! set.contains(m) ) {
					set.add(m);
					res++;
				}
			}
		}
		return Integer.toString(res);
	}

	public static void main(String[] args) throws Exception {
		Scanner in = new Scanner(System.in.available() > 0 ? System.in : 
			new FileInputStream(Thread.currentThread().getStackTrace()[1].getClassName() + ".practice.in"));
		int T = in.nextInt();
		for(int i = 1; i <= T; i++) 
			System.out.format("Case #%d: %s\n", i, process(in));
	}
}

package codeJam;

import java.util.Scanner;

public class C {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int testCases = s.nextInt();
		for(int i=1; i<=testCases; i++)
		{
			int lowerBound = s.nextInt();
			int upperBound = s.nextInt();
			int midway = (upperBound+lowerBound)/2;
			int cases=0;
			for(int j=0; j<=upperBound; j++)
			{
				int num = lowerBound+j;
				String temp = "" + num;
				for(int k=1; k<temp.length(); k++)
				{
					String test = temp.substring(k)+temp.substring(0,k);
					int check = Integer.parseInt(test);
					if(check>=lowerBound && check<=upperBound && check!=num && check>num)
					{
						cases++;
					}
				}
			}
			System.out.println("Case #" + i + ": " + cases);
		}
	}
}
