import java.util.*;
import java.io.*;

public class recycled_numbers {
	public static void main(String[]a) throws Exception{
		
		Scanner f = new Scanner(new File(a[0]));
		int result=0;
		int A,B;
		String n,m;
		HashSet<String> s=new HashSet<String>();
		
		int T=f.nextInt();	//T total case count
		for (int t=1; t<=T;t++){//for each case t
			
			s.clear();
			result=0;				//reset
			A=f.nextInt();B=f.nextInt();	//get values for next case
			
			if (A==B)result=0;//remove case not meeting problem limits 
			else{
				for(int i=A;i<=B;i++){//for each int in range
					n=Integer.toString(i);
					m=new String(n);
					//System.out.println(n);
					for (int j=1;j<n.length();j++){//move each digit to the front & test
						m = m.substring(m.length()-1)+m.substring(0,m.length()-1);
						if(m.matches("^0+[\\d]+")!=true &&
								Integer.parseInt(m)<=B &&
								Integer.parseInt(n)<Integer.parseInt(m)){
							s.add(new String(n+","+m));
							//result++;
							//System.out.println(" matched: "+m);
						}
						
					}
				}
				result = s.size();
			}

			//display output
			System.out.println("Case #" + t + ": " + result);
		}
	}
}


import java.util.ArrayList;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Scanner;

public class C {

	static int countBiggerRotated(int n, int B) {
		int count = 0;
		LinkedList<Integer> l = new LinkedList<Integer>();
		int t = n;
		while(t > 0) {
			l.addFirst(t%10);
			t/=10;
		}
		HashSet<Integer> hs = new HashSet<Integer>();
		for (int i = 0; i < l.size(); i++) {
			int m = 0;
			for (int j = i; j < l.size(); j++) {
				m = 10*m + l.get(j);
			}
			for (int j = 0; j < i; j++) {
				m = 10*m + l.get(j);
			}
			if(m > n && m <= B && !hs.contains(m)) {
				++count;
				hs.add(m);
//					System.out.println("(" + n + "," + m + ")");
			}
		}
		return count;
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for (int i = 1; i <= T; i++) {
			int A = sc.nextInt();
			int B = sc.nextInt();
			
			int count = 0;
			for (int j = A; j < B; j++) {
				count += countBiggerRotated(j, B);
			}
			System.out.println("Case #" + i + ": " + count);
		}
	}

}
