import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;

public class Recycled {
    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            int t = Integer.parseInt(br.readLine());
            for (int i = 0; i < t; i++) {
                String[] str = br.readLine().split(" ");
                int a = Integer.parseInt(str[0]);
                int b = Integer.parseInt(str[1]);
                System.out.println("Case #" + (i + 1) + ": " + find(a, b));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static int find(int a, int b) {
        HashSet<Long> used = new HashSet<Long>();
        int digits = String.valueOf(a).length();
        if (digits == 1) return 0;
        for (int i = a; i <= b; i++) {
            int s = 10;
            int m = (int) Math.pow(10, digits-1);
            for (int j = 0; j < digits-1; j++) {
                int r = i % s;
                if (r < s/10) continue;
                int q = i / s;
                int rn = r * m + q;
                s *= 10; m /= 10;
                if (i != rn && rn >= a && rn <= b) {
                    long pp;
                    if (rn < i) pp = (long)rn << 30 | i;
                    else pp = (long)i << 30 | rn;
                    if (!used.contains(pp)) {
                        used.add(pp);
                    }
                }
            }
        }
        return used.size();
    }
}

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
import java.util.Stack;



public class RecycledNum {

	
	public static void main(String[] args) throws IOException
	{
		File file = new File("C-small-attempt0.in");
		Scanner scanner;
		BufferedWriter out = new BufferedWriter(new FileWriter("outfile1"));
		
		try
		{
			scanner = new Scanner(file);
			int testCases = scanner.nextInt();
			scanner.nextLine();  
			
			for(int numTest=0; numTest<testCases; numTest++)
			{
				int A = scanner.nextInt();
				int B = scanner.nextInt();
				scanner.nextLine();
				int totalcount=0;
				
				Stack<Integer> st = new Stack<Integer>();
				int numDigit =0;
				int temp = A;
				while(temp != 0)
				{
					st.push(temp%10);
					numDigit++;
					temp=temp/10;	
				}
				int[] digitsA = new int[numDigit];
				for(int i=0; i<numDigit; i++)
					digitsA[i]= st.pop();
				int[] digitsB = new int[numDigit];
				temp=B;
				int index=numDigit;
				while(temp != 0)
				{
					digitsB[index-1]=(temp%10);
					index--;
					temp=temp/10;	
				}
				
				
				
				int numofInt = B-A+1;
				boolean[] mark = new boolean[numofInt];
			
				
				for(int num=A; num<=B; num++)
				{
				
					int[] curDigits = new int[numDigit];
					temp = num;
				    index=numDigit;
					while(temp!=0)
					{
						curDigits[index-1]=(temp%10);
						index--;
						temp=temp/10;	
					}
					int count = 0;
					for(int j=0; j<numDigit; j++)
					{
						boolean cycle = false;
						if(curDigits[j]!=0)
						{
							int sum=0;
							int curindex=j;
							for(int kk=0; kk<numDigit; kk++)
							{
						
					
								if(curindex>=numDigit)
								
									sum=sum*10+curDigits[curindex-numDigit];
								else
									sum=sum*10+curDigits[curindex];
								curindex=curindex+1;
								
							}
				
							if((sum<=B)&&(sum>=A))
								cycle=true;
							
							
							
							if(cycle==true)
							{
								
							
								
								if(mark[sum-A]!= true)
								{
									mark[sum-A]= true;
									count++;
				
								}	
							}
							
						}
					}
					
					if(count==7)
						totalcount=totalcount+21;
					else if(count==6)
						totalcount=totalcount+15;
					else if(count==5)
						totalcount=totalcount+10;
					else if(count==4)
						totalcount=totalcount+6;
					else if(count==3)
						totalcount=totalcount+count;
					else if(count==2)
						totalcount=totalcount+1;
					
				}
				
				
				
				out.write("Case #"+(numTest+1)+": "+ totalcount +"\n");
				
			}
			out.close();
		}
		catch (FileNotFoundException e) {
			e.printStackTrace();
		}

	}
}
