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.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class recycle {
	
	public static void main(String args[]) throws IOException {
		Scanner s = new Scanner(new File("D:\\workspace\\GC12\\src\\input2.txt"));
		FileWriter fo = new FileWriter(new File("D:\\workspace\\GC12\\src\\output2.txt"));
		int number = s.nextInt();
		for(int i = 1; i<= number; i++) {
			fo.write("Case #" + i + ": ");
			int a = s.nextInt();
			int b = s.nextInt();

			Set<String> aCounted = new HashSet<String>();
			for (int j = a;j<=b;j++) {

				StringBuffer n = new StringBuffer(String.valueOf(j));
				for (int p = 0; p < n.length(); p++) {
					n.append(n.charAt(0));
					n.deleteCharAt(0);
					
					if (j < Integer.parseInt(n.toString()) && Integer.parseInt(n.toString()) <= b) {
						aCounted.add(String.valueOf(j) + n.toString());

					}
				
				}

			}

				fo.write(aCounted.size() + "\n");

		}
			fo.close();
			s.close();
	}
}
