#990. From base 2 to base 8
You get a number written in base 2. Convert it to base 8 and print it.
### Input
One line.
### Output
One line.
Examples
Input
1000111110011
Output
10763
Input
1000010110000
Output
10260
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.