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.util.Scanner;

public class Recycler {

    private Scanner input;

    private int numTests = 0;

    public static void main(String[] args) {
	Scanner inp = new Scanner(System.in);
	int numChar = 0;
	numChar = inp.nextInt();
	Recycler r = new Recycler(inp, numChar);
	r.recycle();
    }

    public Recycler(Scanner inp, int numChar) {
	this.input = inp;
	this.numTests = numChar;
    }

    public void recycle() {
	for (int i = 1; (i <= numTests) && input.hasNextLine(); i += 1) {
	    int base = input.nextInt();
	    int end = input.nextInt();
	    int cycles = this.countCycles(base, end);
	    System.out.println("Case #" + i + ": " + cycles);
	}
    }

    public int countCycles(int start, int end) {
	int total = 0;
	int order = order(start);
	for (int i = start; i < end; i += 1) {
	    for (int j = i + 1; j <= end; j += 1) {
		if (isRecycled(i, j, order)) {
		    total += 1;
		}
	    }
	}
	return total;
    }

    public static boolean isRecycled(int i, int j, int order) {
	int rot = (j / 10) + (order * (j - (10 * (j / 10))));
	while (rot != j) {
	    if (rot == i) {
		return true;
	    }
	    rot = (rot / 10) + (order * (rot - (10 * (rot / 10))));
	}
	return false;
    }

    public static int order(int i) {
	int order = 0;
	while (i > 0) {
	    i /= 10;
	    order += 1;
	}
	int result = 1;
	for (int j = 1; j < order; j += 1) {
	    result *= 10;
	}
	return result;
    }
}
	    
	