Background

Can you memorize all digits of pi

Now lhq want to ask one of the smartest people in the world the value of pi from the Lth decimal place to the Rth decimal place.Of course that people is you.

At that time, the value of pi to the 15 th comes to your mind：3.141592653589793

You should take the value of pi from the Lth decimal place to the Rth decimal place.

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

Input

Two integers L(0<L≤15) and R(0<R≤15),(L≤R)

Output

In one line, print the value of pi from the Lth decimal place to the Rth decimal place.

Samples

3 5

159

2 2

4

Limitation

2s, 1024MB for each test case.