A. Calculus
time limit per test
1 second
memory limit per test
512 megabytes
input
standard input
output
standard output

Chipmunk is a math genius, and he is extraordinarily good at calculus.

Now Chipmunk gives you a formula and asks you to calculate it in one minute, or you should treat him to dinner. The formula looks like this: $$$$$$ \int_0^{2\pi}\frac{\text{d}x}{(1+\sin^2x)\sqrt{2-\sin^2x}} $$$$$$

Obviously it is impossible to get the accurate answer, so Chipmunk only requires you to tell him the integer part of it.

Input

It can be anything, and has nothing to do with the answer.

Output

Print an integer $$$n\ (1\le n\le 5)$$$, representing the answer to the problem above.

Example
Input
The probability that Awson is god
Output
1
Note

Of course Chipmunk will not tell you the correct answer in the example above!