poj1131

高精度

import java.io.*;
import java.util.*;
import java.math.*;
public class Main {
    public static void main(String[] args) throws FileNotFoundException
    {
//        Scanner cin = new Scanner(new FileInputStream("t.txt"));
        Scanner cin = new Scanner(System.in);
        while (cin.hasNext())
        {
            String st = cin.next();
            BigDecimal a = new BigDecimal("0");
            BigDecimal b = new BigDecimal("1");
            for (int i = 2; i < st.length(); i++)
            {
                b = b.multiply(BigDecimal.valueOf(8));
                a = a.add(BigDecimal.valueOf(st.charAt(i) - '0').divide(b));
            }
            System.out.println(st + " [8] = " + a + " [10]");
        }
    }
}