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package year_2012.qualification;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashSet;
import java.util.Set;

/**
 *
 * @author paul
 * @date 14 Apr 2012
 */
public class QuestionC {

    private static Set<Integer> getCycle(int x) {

        String s = Integer.toString(x);
        Set<Integer> set = new HashSet<Integer>();
        set.add(x);
        for (int c = 1; c < s.length(); c++) {
            String t = s.substring(c).concat(s.substring(0, c));
            set.add(Integer.parseInt(t));
        }
        return set;
        
    }

    private static Set<Integer> mask(Set<Integer> set, int a, int b) {
        Set<Integer> result = new HashSet<Integer>();

        for (int x : set) {
            if (x >= a && x <= b) {
                result.add(x);
            }
        }
        
        return result;

    }


    public static void main(String[] args) throws FileNotFoundException, IOException {

        String question = "C";

//        String name = "large";
        String name = "small-attempt0";
//        String name = "test";

        String filename = String.format("%s-%s", question, name);

        BufferedReader input = new BufferedReader(
                new FileReader(String.format("/home/paul/Documents/code-jam/2012/qualification/%s.in",
                filename)));

        String firstLine = input.readLine();

        PrintWriter pw = new PrintWriter(new File(
                String.format("/home/paul/Documents/code-jam/2012/qualification/%s.out", filename)));


        int T = Integer.parseInt(firstLine);

        // Loop through test cases.
        for (int i = 0; i < T; i++) {

//             Read data.
            String[] tokens = input.readLine().split(" ");

//            int N = Integer.parseInt(input.readLine());

            int A = Integer.parseInt(tokens[0]);
            int B = Integer.parseInt(tokens[1]);

//            System.out.format("%d, %d\n", A, B);

            boolean[] used = new boolean[B+1];
            int total = 0;
            for (int n = A; n <= B; n++) {
                if (!used[n]) {
                    Set<Integer> set = mask(getCycle(n), A, B);
                    int k = set.size();
                    total += (k * (k-1))/2;
                    for (int m : set) {
                        used[m] = true;
                    }
                }
            }

            pw.format("Case #%d: %d\n", i + 1, total);
        }

        pw.close();

    }

}

package wangshu.codejam.google.com;

import java.io.File;
import java.io.FileWriter;
import java.util.Arrays;
import java.util.Scanner;
import java.lang.*;


public class QC {
	
	public static long calculateNumber(int A, int B){
		
		int size = B-A+1; // Number of integers between A and B
		int A1; // Auxiliary variable that helps to calculate numberOfDigits;
		int numberOfDigits; // Number of digits of A
		int multiple = 1; // Auxiliary variable that helps to calculate rotation;
		int count = 0; // Count stores for each integer between A and B ,
		               //the number of rotated integer that also between A and B
		long result = 0;
		boolean[] counted = new boolean[size]; //Indicate whether the number has been counted or not
		
		//Initialize counted array		
		Arrays.fill(counted, false);
		
		// Calculate the number of digits of A
		for(numberOfDigits=0, A1=A; A1!=0; numberOfDigits++){
			A1 = A1/10;
			multiple = multiple*10;
		}
		
		multiple = multiple/10;
		
		//Calculate the result
		for(int i=A; i<=B; i++){
			count = 0;
			if(!counted[i-A]){
	
				int k=i;
				
//System.out.println("#######");				
				for(int j=0; j<numberOfDigits; j++){						
					if( k>=A && k<=B && !counted[k-A]){
						count ++;
						counted[k-A] = true;
//System.out.println("k is " + k);									
					}
					
					int unitNnumber = k%10;
					k = k/10 + multiple*unitNnumber;
				}
				
			}
/*
if(count > 1){
	System.out.println("**************");
}
*/
			result = result+ ((count)*(count-1))/2;
			
		}		
		
		return result;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) throws java.lang.Exception{
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(new File("qc_in_small.txt"));  // Scanner for input file
		FileWriter outputFile = new FileWriter("qc_out_small.txt");
		
		int A, B;
		//Read number of test cases
		int T = sc.nextInt();
		
		for(int i=0; i<T; i++){
			A = sc.nextInt();
			B = sc.nextInt();
			
		if(B < A)
			throw (new Exception("B is less than A"));
			
//System.out.println("Case #" + (i+1) + ": " + calculateNumber(A, B));
//System.out.println("---------------------------");
			outputFile.write("Case #" + (i+1) + ": " + calculateNumber(A, B)+"\r\n");
		}
		outputFile.flush();
	}

}
