Олимпиадный тренинг

Задача 27060. Formula - 4


Write a program that calculates the value of y.
\(y = 5.45 \cdot \frac {a + 2 \cdot b} {2-a}\)


Input
The input is 2 integers a (a>2) and b.

Imprint
Print the value y.
 
Examples
# Input Output
1 4 2 -21.80
2 1 2 27.25