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);
		}

	}
}

package google.codejam;

import java.awt.Point;
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import com.google.common.base.CharMatcher;
import com.google.common.base.Charsets;
import com.google.common.io.Closeables;
import com.google.common.io.Files;

public class RecycledNumbers {

	public static final int LETTERS_IN_ALPHABET = 26;

	public static void main(String[] args) throws IOException {
		File cwd = new File("C:\\Users\\TaG\\workspace\\CodeJam\\");
		File inputFile = new File(cwd, "input.txt");
		File outputFile = new File(cwd, "output.txt");
		if (outputFile.exists())
			outputFile.delete();
		PrintStream out = null;
		try {
			out = new PrintStream(outputFile);

			List<String> lines = Files.readLines(inputFile, Charsets.UTF_8);
			int cases = Integer.parseInt(lines.remove(0));
			int caseNo = 1;
			for (String line : lines) {
				String[] split = line.split(" ");
				int a = Integer.parseInt(split[0]);
				int b = Integer.parseInt(split[1]);
				int recycledPairs = countRecycledPairs(a, b);
				out.printf("Case #%d: %d\n", caseNo, recycledPairs);
				System.out.printf("Case #%d: %d\n", caseNo, recycledPairs);
				caseNo++;
			} // end for-each lines
		} finally {
			Closeables.closeQuietly(out);
		}
	}

	private static int countRecycledPairs(final int a, final int b) {
		if (a >= b) {
			return 0;
		}
		
		int count = 0;
		for (int n = a; n <= b; n++) {
			Set<Point> set = new HashSet<Point>();
			String ns = Integer.toString(n);
			// System.out.println(ns + ":");
			for (int i = 1; i < ns.length(); i++) {
				String s1 = ns.substring(0, i);
				s1 = CharMatcher.is('0').trimLeadingFrom(s1);
				String s2 = ns.substring(i);
				s2 = CharMatcher.is('0').trimLeadingFrom(s2);
				String ms = s2 + s1;
				if (ns.length() == ms.length()) {
					// System.out.println(s1 + ", " + s2);
					int m = Integer.parseInt(ms);
					if (n > m) {
						int t = n;
						m = n;
						n = t;
					}
					if (a <= n && n < m && m <= b && set.add(new Point(n, m))) {
						count++;
						//System.out.println(ns + ", " + ms);
					}
				}
			}
			// System.out.println();
		}
		return count;
	}

}