import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;


public class GoogleC {
	public String szamol(String input){
		String result="";
		String a=input;
		Integer min=Integer.parseInt(a.substring(0,a.indexOf(' ')));
		a=a.substring(a.indexOf(' ')+1);
		Integer max=Integer.parseInt(a);
		Long count=0l;
		for(Integer i=min; i<=max; i++){
			String e1=i.toString();
			Set<Integer> db=new HashSet<Integer>(); 
			for (int j=1; j<e1.length();j++){
				
				String e2=e1.substring(j)+e1.substring(0,j);
				Integer k=Integer.parseInt(e2);
				if (k>i && k<=max){
					db.add(k);
					//System.out.println(e1+"\t"+e2);
				}
				
			}
			count+=db.size();
		}
		
		return count.toString();
	}
	public static void main(String[] args) {
		GoogleC a=new GoogleC();
		//String filename="input.txt";
		//String filename="C-small-attempt0.in";
		String filename="C-large.in";
		String thisLine;
		try {
			BufferedReader br = new BufferedReader(new FileReader(filename));
			BufferedWriter bw= new BufferedWriter(new FileWriter(filename+".out"));
			thisLine=br.readLine();
			Integer tnum=Integer.parseInt(thisLine);
		     for(int i=0;i<tnum;i++) { // while loop begins here
		    	 	thisLine=br.readLine();
		           System.out.println(thisLine);
		           System.out.println("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		           bw.write("Case #"+(i+1)+": "+a.szamol(thisLine)+"\n");
		         } // end while 
		        // end try
		     br.close();
		     bw.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}


	}

}

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.Set;

public class Recycled {
	public static void main(String[] args) throws Exception {
		FileInputStream fstream = new FileInputStream("text.in");
		// Get the object of DataInputStream
		DataInputStream in = new DataInputStream(fstream);
		BufferedReader br = new BufferedReader(new InputStreamReader(in));
		String strLine;
		int count = 0;
		int totalLines;
		// ArrayList<List> numbers = new ArrayList<List>();
		while ((strLine = br.readLine()) != null) {
			if (count == 0) {
				totalLines = Integer.parseInt(strLine);
			} else {
				int recycled = 0;
				String[] nums = strLine.split(" ");
				int startNum = Integer.parseInt(nums[0]);
				int endNum = Integer.parseInt(nums[1]);
				for (int i = startNum; i <= endNum; i++) {
					recycled += testInteger(i, endNum);
					
				}
				System.out.println("Case #" + count + ": " + recycled);
			}
			count++;
		}
		in.close();
	}

	private static int testInteger(int i, int endNum) {
		String numStr = String.valueOf(i);
		int currentCount = 0;
		Set<String> matches = new HashSet<String>();
		for (int j = 1; j < numStr.length(); j++) {
			String newNumStr = swapNumber(numStr);
			if ((Integer.parseInt(newNumStr) > i) && ((Integer.parseInt(newNumStr) <= endNum))) {
//				System.out.println(i+" "+newNumStr);
				currentCount++;
				matches.add(newNumStr);
		//	} else {
		//		return 0;
			}
			numStr = newNumStr;
		}
		return matches.size();
	}

	private static String swapNumber(String numStr) {
		String lastDigit = numStr.substring(numStr.length()-1);
		String firstDigits = numStr.substring(0, numStr.length()-1);
		return lastDigit.concat(firstDigits);
	}
	
	
}
