0025. Chiziqli10

Time limit : 1000 ms
Memory limit : 64 mb

Ifodani hisoblang

TT=x1+x+2+lg(ax2+2)x+2+x+24+x5


Kiruvchi ma’lumotlar:

Bitta butun son a (1a30) va bitta haqiqiy son x(1x10);


Chiquvchi ma’lumotlar:

bitta son masala yechimi 102 aniqlikda

Input
4 1.28
Output
0.94
Input
3 7.98
Output
0.04