0024. Chiziqli9

Time limit : 1000 ms
Memory limit : 64 mb

Ifodani xisoblang

$$W1 = 0.75 + \frac{8.2x^2 + \sqrt{|x^3 + 3x| + cos(x-2)}}{\frac{a}{4} + \frac{b}{3} + \frac{c}{2} + 1}$$


Kiruvchi ma’lumotlar:

Uchta butun son $a,b,c (1\le a,b,c \le 20)$ va bitta haqiqiy son $x(1 \le x \le 10)$;


Chiquvchi ma’lumotlar:

bitta son masala yechimi $10^{-2}$ aniqlikda.

Input
1 1 1 0.33
Output
1.64
Input
1 0 3 0.99
Output
4.44