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));
	}
}

import java.util.ArrayList;


public class SpeakingInToungues {
private static String inputFile = "C:\\PERSONAL-WORKSPACE\\GCJ-2012\\src\\input-output\\Input.txt";
private static String outputFile = "C:\\PERSONAL-WORKSPACE\\GCJ-2012\\src\\input-output\\Output.txt";
public static void main(String[] args) {
	InputReader ir = new InputReader(inputFile);
	OutputWriter ow = new OutputWriter(outputFile);
	ArrayList<String> lines = ir.loadLines();
	//Given examples cover 25 chars and the one left out is q which is ideally mapped to the unused char z.
	String normalText = 	"aozq our language is impossible to understand there are twenty six factorial possibilities so it is okay if you want to just give up";
	String googlereseText = "yeqz ejp mysljylc kd kxveddknmc re jsicpdrysi rbcpc ypc rtcsra dkh wyfrepkym veddknkmkrkcd de kr kd eoya kw aej tysr re ujdr lkgc jv";
	StringBuffer sb = null;
	for(int i=1;i<lines.size();i++){
		sb = new StringBuffer();
		char[] charArray = lines.get(i).toCharArray();
		for(int j=0;j<charArray.length;j++){
			sb.append(normalText.charAt(googlereseText.indexOf(charArray[j])));
		}
		ow.writeCaseLine(sb.toString());
	}
	ow.flushAndClose();
}
}
