import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;

public class ReadFile {
	public static void main(String[] args) throws Exception {
		String srcFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt1.in.txt";
		String destFile = "C:" + File.separator + "Documents and Settings"
				+ File.separator + "rohit" + File.separator + "My Documents"
				+ File.separator + "Downloads" + File.separator
				+ "C-small-attempt0.out";
		File file = new File(srcFile);
		List<String> readData = new ArrayList<String>();
		FileReader fileInputStream = new FileReader(file);
		BufferedReader bufferedReader = new BufferedReader(fileInputStream);
		StringBuilder stringBuilder = new StringBuilder();
		String line = null;
		while ((line = bufferedReader.readLine()) != null) {
			readData.add(line);
		}
		stringBuilder.append(generateOutput(readData));
		File writeFile = new File(destFile);
		if (!writeFile.exists()) {
			writeFile.createNewFile();
		}
		FileWriter fileWriter = new FileWriter(writeFile);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		bufferedWriter.write(stringBuilder.toString());
		bufferedWriter.close();
		System.out.println("output" + stringBuilder);
	}

	/**
	 * @param number
	 * @return
	 */
	private static String generateOutput(List<String> number) {
		StringBuilder stringBuilder = new StringBuilder();
		for (int i = 0; i < number.size(); i++) {
			if (i == 0) {
				continue;
			} else {
				String tempString = number.get(i);
				String[] temArr = tempString.split(" ");
				stringBuilder.append("Case #" + i + ": ");
				stringBuilder.append(getRecNumbers(temArr[0], temArr[1]));
				stringBuilder.append("\n");
			}
		}
		if (stringBuilder.length() > 0) {
			stringBuilder.deleteCharAt(stringBuilder.length() - 1);
		}
		return stringBuilder.toString();
	}

	// /* This method accepts method for google code jam */
	// private static String method(String value) {
	// int intValue = Integer.valueOf(value);
	// double givenExpr = 3 + Math.sqrt(5);
	// double num = Math.pow(givenExpr, intValue);
	// String valArr[] = (num + "").split("\\.");
	// int finalVal = Integer.valueOf(valArr[0]) % 1000;
	//
	// return String.format("%1$03d", finalVal);
	//
	// }
	//
	// /* This method accepts method for google code jam */
	// private static String method2(String value) {
	// StringTokenizer st = new StringTokenizer(value, " ");
	// String test[] = value.split(" ");
	// StringBuffer str = new StringBuffer();
	//
	// for (int i = 0; i < test.length; i++) {
	// // test[i]=test[test.length-i-1];
	// str.append(test[test.length - i - 1]);
	// str.append(" ");
	// }
	// str.deleteCharAt(str.length() - 1);
	// String strReversedLine = "";
	//
	// while (st.hasMoreTokens()) {
	// strReversedLine = st.nextToken() + " " + strReversedLine;
	// }
	//
	// return str.toString();
	// }

	private static int getRecNumbers(String no1, String no2) {

		int a = Integer.valueOf(no1);
		int b = Integer.valueOf(no2);
		Set<String> dupC = new HashSet<String>();
		for (int i = a; i <= b; i++) {
			int n = i;
			List<String> value = findPerm(n);
			for (String val : value) {
				if (Integer.valueOf(val) <= b && Integer.valueOf(val) >= a
						&& n < Integer.valueOf(val)) {
					dupC.add(n + "-" + val);
				}
			}
		}
		return dupC.size();
	}

	private static List<String> findPerm(int num) {
		String numString = String.valueOf(num);
		List<String> value = new ArrayList<String>();
		for (int i = 0; i < numString.length(); i++) {
			String temp = charIns(numString, i);
			if (!temp.equalsIgnoreCase(numString)) {
				value.add(charIns(numString, i));
			}
		}
		return value;

	}

	public static String charIns(String str, int j) {
		String begin = str.substring(0, j);
		String end = str.substring(j);
		return end + begin;
	}
}
/*
GCJ2012-Q
*/

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

public class GCJ2012QC {
	static BufferedReader fin;
    static PrintWriter fout;
    // change numefile
    static String file="qcs2";
    static String infile=file+".in";
    static String outfile=file+".out";
    //
  	
	// write result to output file
	private static void writetestresult(int test, String ret){
		fout.println("Case #"+test+": "+ret);
	}
	
	// open files
	private static void openfiles() throws IOException{
		fin = new BufferedReader(new FileReader(infile));
	    fout = new PrintWriter(new BufferedWriter(new FileWriter(outfile)));
	}
	
	// close files
	private static void closefiles() throws IOException{
		fin.close();
		fout.close();
	}
	
	 // solve test no. "test"
	private static String solvetest(int test) throws IOException{
		System.out.println(">>>Solving test..."+test);
		// Parse input for test no. test
		int iret=0;
		String a=fin.readLine();	
		String[] as=a.split(" ");
		int A=Integer.parseInt(as[0]);
		int B=Integer.parseInt(as[1]);
		for (int n=A; n<B; n++){
			List<Integer> lst=new ArrayList<Integer>();
			
			
			int len=(""+n).length();
			String sm=""+n;
			for (int j=0; j<=len; j++) {
				String sk=sm;
				int lk=sk.length();
				sm=sk.charAt(lk-1)+sk.substring(0, lk-1);
				int m=Integer.parseInt(sm);
				
				if (m>n && m<=B) if (!lst.contains(m)) {
					lst.add(m); 
					// System.out.println(n+" "+m);
				}
				
				
			}
			iret+=lst.size();
		}
		String ret="";
		ret=""+iret;
		return ret;
	}
	
	// main here
	public static void main(String[] args) throws IOException{
		// open files
		openfiles();
		// read first line, no. of tests
		String line=fin.readLine();
		int T=Integer.parseInt(line);    
		// solve T tests
		for (int test=1; test<=T; test++) {	    	
			//long stime=System.currentTimeMillis();
			
			String ret=solvetest(test);
			writetestresult(test, ret);
			
			//long etime=System.currentTimeMillis();
	    	//long dtime=(etime-stime);
	    	//System.out.println("Test "+test+": "+dtime+"ms");
		}	    
		// close files
		closefiles();
	}
}
