e-olymp
Problems

Bitset

Bitset

Give you a number on base ten, you should output it on base two.

Input

For each case there is not negative number n (n < 1000) on base ten, end of file.

Output

For each case output a number on base two.

Time limit 1 second
Memory limit 64 MiB
Input example
1
2
3
Output example
1
10
11
Author Анатолий Присяжнюк
Source II этап Всеукраинской олимпиады школьников 2012-2013, г. Бердичев