Environment Canada uses the following formula to calculate the wind

chill index:

W $=13\mathrm{.}12+0\mathrm{.}6215$T $11\mathrm{.}37$v$0\mathrm{.}16+0\mathrm{.}3965$T v$0\mathrm{.}16$

where T is the air temperature $($in degrees Celsius$)$ and v be the wind

speed, in km$/$h$.$ Write a code to calculate W$.$