package jp.funnything.competition.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.io.IOUtils;

public class QuestionReader {
    private final BufferedReader _reader;

    public QuestionReader( final File input ) {
        try {
            _reader = new BufferedReader( new FileReader( input ) );
        } catch ( final FileNotFoundException e ) {
            throw new RuntimeException( e );
        }
    }

    public void close() {
        IOUtils.closeQuietly( _reader );
    }

    public String read() {
        try {
            return _reader.readLine();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public BigDecimal[] readBigDecimals() {
        return readBigDecimals( " " );
    }

    public BigDecimal[] readBigDecimals( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigDecimal[] values = new BigDecimal[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigDecimal( tokens[ index ] );
        }

        return values;
    }

    public BigInteger[] readBigInts() {
        return readBigInts( " " );
    }

    public BigInteger[] readBigInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigInteger[] values = new BigInteger[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigInteger( tokens[ index ] );
        }

        return values;
    }

    public int readInt() {
        final int[] values = readInts();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public int[] readInts() {
        return readInts( " " );
    }

    public int[] readInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final int[] values = new int[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Integer.parseInt( tokens[ index ] );
        }

        return values;
    }

    public long readLong() {
        final long[] values = readLongs();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public long[] readLongs() {
        return readLongs( " " );
    }

    public long[] readLongs( final String separator ) {
        final String[] tokens = readTokens( separator );

        final long[] values = new long[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Long.parseLong( tokens[ index ] );
        }

        return values;
    }

    public String[] readTokens() {
        return readTokens( " " );
    }

    public String[] readTokens( final String separator ) {
        return read().split( separator );
    }
}



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

class Pair<L,R> {

	  private final L left;
	  private final R right;

	  public Pair(L left, R right) {
	    this.left = left;
	    this.right = right;
	  }

	  public L getLeft() { return left; }
	  public R getRight() { return right; }

	  @Override
	  public int hashCode() { return left.hashCode() ^ right.hashCode(); }

	  @Override
	  public boolean equals(Object o) {
	    if (o == null) return false;
	    if (!(o instanceof Pair)) return false;
	    Pair pairo = (Pair) o;
	    return this.left.equals(pairo.getLeft()) &&
	           this.right.equals(pairo.getRight()) || this.left.equals(pairo.getRight()) &&
	           this.right.equals(pairo.getLeft());
	  }

	}


public class Dancing {

	/**
	 * @param args
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException {
		
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		String str = in.readLine();
		int numberOfCases = Integer.parseInt(str);
		ArrayList<Integer> array = new ArrayList<Integer>();
		for (int j = 0; j < numberOfCases; j++) {
			String str1 = in.readLine();
			String delimiter = " ";
			String[] temp;
			temp = str1.split(delimiter);
			String lowerlimit = temp[0];
			String upperlimit = temp[1];
			int count = recycledInteger(upperlimit, lowerlimit);
			array.add(count);
		}
		for (int i = 0; i < array.size(); i++) {
			System.out.println("Case #"+(i+1)+": "+array.get(i));
		}
		

	}

	public static int recycledInteger(String upperlimit, String lowerlimit) {

		int lower = Integer.parseInt(lowerlimit);
		int upper = Integer.parseInt(upperlimit);
		// String.valueOf(i);
		int counter = 0;
		int temp = lower;
		ArrayList<Pair<Integer, Integer>> arraypairs = new ArrayList<Pair<Integer, Integer>>();
		while (temp <= upper) {
			String string = String.valueOf(temp);
			for (int i = 1; i < string.length(); i++) {
				String recycled = string.substring(i, string.length())
						+ string.substring(0, i);
				if (Integer.parseInt(recycled) >= lower
						&& Integer.parseInt(recycled) <= upper) {
					Pair<Integer, Integer> pair = new Pair<Integer, Integer>(
							Integer.parseInt(recycled), temp);
					if (Integer.parseInt(recycled) != temp) {
						if(!arraypairs.contains(pair)){
							//System.out.println(temp+"   "+recycled);
							counter++;
						}
						arraypairs.add(pair);
					}
				}
			}
			temp++;
		}
		return counter;
	}
}
