题目1138：进制转换

package jinzhizhuanzhuan;

import java.math.BigInteger;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner cin = new Scanner(System.in);
        BigInteger a;
        while (cin.hasNext()) {
            a = cin.nextBigInteger();
            System.out.println(a.toString(2));
        }
    }

}