import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;


public class Main {

//	static int MAX = 10000;
	static int MAX = 2000000;
	static Object[] All = new Object[MAX+1];
	
	static int size( int x ) {
		if(x>999999) return 7;
		if(x>99999)  return 6;
		if(x>9999)   return 5;
		if(x>999)    return 4;
		if(x>99)     return 3;
		if(x>9)      return 2;
		return 1;
	}
	static int[] rotate( int value ) {
		List<Integer> result = new ArrayList<Integer>();
		int[] V = new int[8];
		int s = size(value);
		int x = value;
		
		for(int i=s-1;i>=0;i--) {
			V[i] = x%10;
			x /=10;
		}
		int rot;
		for(int i=1; i<s; i++) {
			if(V[i]!=0){
				rot=0;
				for(int j=0,ii=i;j<s; j++,ii=(ii+1)%s){
					rot=rot*10+V[ii];
				}
				if(rot>value && !result.contains(rot))
					result.add(rot);
			}
		}
		if( result.isEmpty() )
			return null;
		int[] r = new int[result.size()];
		for(int i=0; i<r.length; i++)
			r[i]=result.get(i);
		return r;
	}
	
	static void precalculate() {
		for(int i=1; i<=MAX; i++){
			All[i] = rotate(i);
		}
	}
	static int solve( Scanner in ) {
		int A, B, sol=0;
		
		A = in.nextInt();
		B = in.nextInt();

		for( int i=A; i<=B; i++) {
//			List<Integer> result = rotate(i);
			if( All[i]!=null ) {
				for(int value: (int[])All[i] ) {
					if( value <= B )
						sol++;
				}
			}
		}

		return sol;
	}
	
	public static void main ( String args[] ) {
		int T; 
		Scanner in = new Scanner(System.in);
		T = in.nextInt();
		int cnt=0;
		int sol;
		precalculate();
		for( cnt=1; cnt<=T; cnt++ ) {
			sol = solve( in );
			System.out.printf("Case #%d: %d\n", cnt, sol);
		}

	}
}

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class RecycleSolution {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String inFilename = "C-large.in";
		String outFilename = inFilename.substring(0, inFilename.length() - 3)
				+ ".out";
		try {
			Scanner sc = new Scanner(new File(inFilename));
			PrintStream ps = new PrintStream(new FileOutputStream(outFilename));
			int testCases = Integer.parseInt(sc.nextLine());
			for (int i = 1; i <= testCases; i++) {
				// logic
				if (i >= 1) {
					ps.println();
				}
				String data = sc.nextLine();
				String[] parts = data.split(" ");
				int min = Integer.parseInt(parts[0], 10);
				int max = Integer.parseInt(parts[1], 10);
				int pairCount = 0;
				for (int test = min; test < max; test++) {
					List<Integer> orderings = orderingsOf(test);
					for (int ordering : orderings) {
						if (ordering > test && ordering <= max) {
							pairCount++;
						}
					}
				}
				System.out.println("Case #" + i + ": " + pairCount);
				ps.print("Case #" + i + ": " + pairCount);
			}
			sc.close();
			ps.close();
		} catch (Exception ex) {
			ex.printStackTrace();
		}

	}

	public static List<Integer> orderingsOf(int number) {
		List<Integer> myOrderings = new ArrayList<Integer>();
		String base = "" + number;
		int baselen = base.length();
		for (int i = 0; i < baselen; i++) {
			String thisperm = base.substring(baselen - i);
			if (baselen - i > 0) {
				thisperm += base.substring(0, baselen - i);
			}
			// Strip out 0-starting
			int tplen = ("" + Integer.parseInt(thisperm, 10)).length();
			if (tplen == baselen)
				myOrderings.add(Integer.parseInt(thisperm, 10));
		}
		return myOrderings;
	}

}
