By means of the following formula one can convert temperatures in degrees Celsius $$T_c$$ to the corresponding temperatures in degrees Fahrenheit $$T_f$$: \[T_f = 1.8T_c + 32\]

Input

One line containing a single number: a temperature $$T_c \in \mathbb{R}$$ in degrees Celsius.

Output

One line containing a single number: the corresponding temperature $$T_f \in \mathbb{R}$$ in degrees Fahrenheit.

Example

Input:

24

Output:

75.2