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 cycles;

import java.io.File;

import io.Reader;

public class CycloMatic {
	public static void main(String[] args){
		new CycloMatic();
	}
	
	public CycloMatic(){
		String[] lines = Reader.getInput(new File("C-small-attempt0.in"));
		
		
		for(int i = 0; i < lines.length; i++){
			String line = lines[i];
			String[] lineParts = line.split(" ");
			int bottom = Integer.parseInt(lineParts[0]);
			int top = Integer.parseInt(lineParts[1]);
			int sum = 0;
			for(int j = bottom; j<top; j++){
				int q = numCycles(j,top);
				if (q!=0){
					sum+=q;
				}
			}
			System.out.println("Case #"+(i+1)+": "+sum);
		}
			
		
	}
	
	public int numCycles(int original, int max){
		int counter = 0;
		String newIntS = cycle(original);
		int newInt = Integer.parseInt(newIntS);
		for (int i = 0; i < (original+"").length();i++){
			if(newInt>original && newInt<=max){
				counter++;
			}
			newIntS = cycle(newIntS);
			newInt = Integer.parseInt(newIntS);
		}
		return counter;
	}
	
	
	public String cycle(int j){
		return cycle(j+"");
	}
	
	public String cycle(String j){
		String s = j+"";
		char ss=s.charAt(s.length()-1);
		s = s.substring(0,s.length()-1);
		return ss+s;
	}
}
