eolymp
bolt
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Problems

Bitset

Bitset

Time limit 1 second
Memory limit 64 MiB

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

Input data

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

Output data

For each case output a number on base two.

Examples

Input example #1
1
2
3
Output example #1
1
10
11
Author Анатолий Присяжнюк
Source II этап Всеукраинской олимпиады школьников 2012-2013, г. Бердичев