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.HashSet;
import java.util.Scanner;


public class C_Recycled {

	static boolean recycled (String n, String B, String i) {
		return (n.compareTo(i) < 0) && (i.compareTo(B) <= 0);
	}
	
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int T = in.nextInt();
		for (int cas = 1; cas <= T; cas++) {
			int recycledPairs = 0;
			int A = in.nextInt();
			int B = in.nextInt();
			String sB = B+"";
			for (int n = A; n < B; n++) {
				HashSet<String> hs = new HashSet<String>();
				String sn = n+"";
				for (int i = 1; i <= sn.length(); i++) {
					String si = sn.substring(i) + sn.substring(0,i);
					if (recycled(sn,sB,si))
						hs.add(si);
				}
				recycledPairs += hs.size();
			}
			if (cas > 1)
				System.out.println();
			System.out.print("Case #"+cas+": "+recycledPairs);
		}

	}

}
