import java.io.*;

class code1
{
	public static void main(String args[]) throws Exception 
	{
		File ii = new File ("C-small-attempt1.in");
		FileInputStream fis = new FileInputStream(ii);
		BufferedReader  br = new BufferedReader(new InputStreamReader (fis));
		int cases = Integer.parseInt(br.readLine());
		FileOutputStream fout = new FileOutputStream ("output.txt");
		DataOutputStream dout = new DataOutputStream (fout);
		int total=0;
		for(int i=0;i<cases;i++){
		String temp = br.readLine();
		String parts [] = temp.split(" ");
		int lower = Integer.parseInt(parts[0]);
		int upper = Integer.parseInt(parts[1]);
		System.out.println(lower+" "+upper);
		
		for(int j=lower;j<=upper;j++)
		{
			int abc = j;int length=0;
			if(j<10)continue;
			while (abc!=0){abc/=10;length++;}
			abc=j;
			for(int m=0;m<length-1;m++){
				int shift = abc%10;
				abc=abc/10;
				System.out.println("hi "+j);
				abc=abc+shift*power(10,length-1);
				if(abc<=upper&&shift!=0&&abc>j)total++;
				System.out.println(total);
			}
		}
 		dout.writeBytes("Case #"+(i+1)+ ": "+total+"\n");
 		total=0;
		}//for close
		
	}

	private static int power(int i, int j) {
		int no=1;
		for(int a=0;a<j;a++){no=10*no;}
		return no;
	}
}
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;

public class RecycledNumbers {

	public static FileReader fileReader;
	public static BufferedReader reader;
	public static FileWriter fileWriter;
	public static BufferedWriter writer;

	public void executeLogic() throws Exception {

		String newLine;

		newLine = reader.readLine();
		int increment = 1;

		while ((newLine = reader.readLine()) != null) {
			int totalNumberCount = 0;
			String stringToArray[] = newLine.split("\\s");
			int A = Integer.parseInt(stringToArray[0]);
			int B = Integer.parseInt(stringToArray[1]);

			for (int i = A; i <= B; i++) {
				int n = i;
				String stringValueOfA = Integer.toString(n);
				int numberOfDigitsInA = stringValueOfA.length();
				int backIndex = numberOfDigitsInA - 1;
				String tempStringValueOfA = stringValueOfA;
				while (backIndex > 0) {

					String first = tempStringValueOfA.substring(0, backIndex);
					String second = tempStringValueOfA.substring(backIndex,
							numberOfDigitsInA);
					stringValueOfA = second + first;
					int m = Integer.parseInt(stringValueOfA);
					if ((m <= B && m > n)
							&& !stringValueOfA.startsWith("0")
							&& (Integer.toString(n).length()) == stringValueOfA
									.length())
						totalNumberCount++;

					backIndex--;

				}
			}

			writer.write("Case #" + increment++ + ": " + totalNumberCount
					+ "\n");

		}
		writer.close();
		fileWriter.close();

	}

	public static void main(String[] args) throws Exception

	{
		RecycledNumbers recycledNumbers = new RecycledNumbers();

		String inputFilePath = "C:\\CodeJamFiles\\Small2.in";
		String outputFilePath = "C:\\CodeJamFiles\\Small2.out";

		fileReader = new FileReader(inputFilePath);
		reader = new BufferedReader(fileReader);
		fileWriter = new FileWriter(outputFilePath, false);
		writer = new BufferedWriter(fileWriter);

		recycledNumbers.executeLogic();

	}

}
