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.List;


public class RecycledNumbers {

	private int A;
	private int B;
	
	public RecycledNumbers(int A, int B) {
		this.A = A;
		this.B = B;
	}
	
	public int calculate() {
		int result = 0;
		int digitCount = Integer.toString(A).length();
		
		if (digitCount == 1) return 0;
		
		List<String> numbers = new ArrayList<String>();
		for (int i = A; i < B + 1; i++) {
			numbers.add(Integer.toString(i));
		}
		
		for (int i = 0; i < numbers.size(); i++) {
			String number = numbers.get(i);
			
			for (int j = 1; j < digitCount; j++) {
				String reverseNumber = number.substring(j) + number.substring(0, j);
				int reversInt = Integer.parseInt(reverseNumber);
				
				if ((reversInt <= B) && (reversInt > Integer.parseInt(number))) {
//					System.out.println("A(" + A + ") <= " + number + " < " + reverseNumber + " <=B(" + B + ")");
					result++;
				}
			}
		}
		
		return result;
	}
	
	public static List<RecycledNumbers> parseFromFile(List<String> readInput) {
		List<RecycledNumbers> result = new ArrayList<RecycledNumbers>();
		int testCaseCount = Integer.parseInt(readInput.get(0));

		for (int i = 0; i < testCaseCount; i++) {
			String line[] = readInput.get(i + 1).split(" ");

			result.add(new RecycledNumbers(Integer.parseInt(line[0]), Integer.parseInt(line[1])));
		}

		return result;
	}
	
	@Override
	public String toString() {
		return "A = " + A + "; B = " + B;
	}
}
