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Background

Can you memorize all digits of pi

Now mq want to ask one of the smartest people in the world the first $N$ digits of pi.Of course that people is you.

At that time, the value of pi to the 100 th comes to your mind：3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679

You should value of pi to the N th decimal place.

More precisely, truncate the value of pi to decimal places and print the result without removing the trailing s

Input

One integers $N(0 < N \le 100 )$

Output

Print the value of pi to the $N$th decimal place in a single line.

Samples

4

3.1415

Limitation

2s, 1024MB for each test case.