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 qualifier;

import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Scanner;


public class C {
	static boolean done[] = new boolean[2222222];

	public static void main(String args[]) throws IOException {
		Scanner in = new Scanner(new File("C-small.in"));
		System.setOut(new PrintStream(new File("C-small.out")));
		int tc = in.nextInt();
		
		for(int c=1; c<=tc; c++) {
			int a = in.nextInt();
			int b = in.nextInt();
			int d = 0;
			int t = a;
			int m = 1;
			int ct  = 0;
			int n;
			while(t > 0) {
				t /= 10;
				d++;
				m *= 10;
			}
			d--;
			m /= 10;
			
			Arrays.fill(done, false);
			
			for(int i=a; i<=b; i++) {
				if (done[i])
					continue;
				done[i] = true;
				n = i;
				t = 0;
				for(int j=d; j>0; j--) {
					n = (n/10)+((n%10)*m);
					if(n > m && n >= a && n <= b && !done[n]) {
						t++;
						done[n] = true;
					}
				}
				ct += (t*(t+1))/2;
			}
			System.out.printf("Case #%d: %d\n", c, ct);
		}
	}
}
