PHP Developer

Which one do you prefer :

1. Get paid well but code some boring stuffs
2. Get paid low but code some cool stuffs (an apps that made you think about it day and night, what algorithm can be injected more to make it run faster)

If your answer is 2 (anyway, we are doing some cool stuffs and paid you well), to validate your answer here are some puzzle for you to solve :

If we try to write numbers consecutively like this :

123456789101112131415161718192021……

What is the 1,000,000^th digit ?

What is the 1,000,000,000^th digit ?

What is the 1,000,000,000,000^th digit ?

Send your answer and your code (PHP or any programming language!)

and your resume to :

puzzle@qerja.com

We would really love to meet you

hint : especially in PHP, be careful with overflow number in the third digit