import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class CopyOfCopyOfMain {

	static int ndigits(int n) {
		return (int) (Math.log10(n) + 1);
	}

	static int rot(int n, int dig) {
		return (int) ((n % 10) * Math.pow(10, dig - 1)) + (int) (n / 10);
	}

	public static void main(String[] args) throws FileNotFoundException {
		String file = "C-large";
		Scanner in = new Scanner(new File(file + ".in"));
		PrintWriter out = new PrintWriter(new File(file + ".out"));

		int T = in.nextInt();
		for (int t = 1; t <= T; t++) {
			int A = in.nextInt();
			int B = in.nextInt();

			int c = 0;
			int[] list = new int[ndigits(B)];
			numbers: for (int i = A; i <= B; i++) {
				int digs = ndigits(i);
				int rot = i;
				int pairs = 0;

				Arrays.fill(list, -1);
				list[0] = i;

				digits: for (int j = 1; j <= digs + 1; j++) {

					rot = rot(rot, digs);
					if(rot < i)
						continue;

					if (A <= rot && rot <= B) {
						for (int k = 0; k < j; k++) {
							if (list[k] == rot) {
								continue digits;
							}
						}
						pairs++;
						list[j] = rot;
					}
				}

				//c += pairs * (pairs + 1) / 2;
				c += pairs ;
				// c+=digs;
			}
			out.println("Case #" + t + ": " + c);
		}

		in.close();
		out.close();
	}
}

import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Scanner;


public class recycle {
	static Scanner kb ;
	public static void main(String[] args) throws FileNotFoundException {
		// TODO Auto-generated method stub
PrintWriter out = new PrintWriter("answerrecycle.txt");
		 kb = new Scanner(System.in);
		int testcase = kb.nextInt();
		for(int i=0;i<testcase;i++){
			out.println("Case #"+(i+1)+": "+solve());
		}
		out.close();
	}
	private static int solve() {
		// TODO Auto-generated method stub
		
		int minnumber = kb.nextInt();
		int maxnumber = kb.nextInt();
		int answer = 0;
		for(int i=minnumber;i<=maxnumber;i++){
			ArrayList<Integer> mem = new ArrayList<Integer>();
			String number = Integer.toString(i);
			int s = (int)number.charAt(0)-48;
			for(int k=1;k<number.length();k++){
			int n = (int)number.charAt(k)-48;
			
			if(n>=s){
				
				String news =  number.substring(k,number.length())+number.substring(0,k);
				int numbernew = Integer.parseInt(news);
				if(numbernew<=maxnumber&&(!(numbernew<=i))&&news.length()==number.length()&&!mem.contains(numbernew)){
					answer++;
					//System.out.println(number+"_n>s_"+news);
					mem.add(numbernew);
				}
				
			}
			
		}
		
	}
		return answer;
	}
}
