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 RecycledNum {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int T = sc.nextInt();
		for(int i=0; i<T; i++)
		{
			boolean [] unused = new boolean[2000001];
			int A = sc.nextInt();
			int B = sc.nextInt();
			int numPairs = 0;
			int rot = (int) Math.floor(Math.log10(A));
			int multiplier = (int) Math.pow(10, rot);
			for(int j=A; j<=B; j++)
				unused[j] = true;
			for(int j=A; j<=B; j++)
			{
				if(unused[j])
				{
					unused[j] = false;
					int num = j;
					int numRot = 1;
					for(int k=0; k<rot; k++)
					{
						// rotate
						int part2 = (num%10);
						int part1 = (num/10);
						num = (part2 * multiplier) + part1;
						if(unused[num])
						{
							numRot++;
							unused[num] = false;
						}
					}
					// if numRot >= 2 get numRot C 2
					if(numRot > 1) numPairs += (numRot - 1) * numRot / 2;
				}
			}
			System.out.println("Case #" + (i+1) + ": " + numPairs);

			
		}
	}
}
