We have to make a program that computes Wind Chill here is my code. I need help fixing it.

#include <iostream>
using namespace std;
int main()

{
double F; //F is Farenheit Temperature

double WS; //WS is Wind Speed

double WC = 35.74 + 0.6215F - 35.75WS.16 + 0.4275FWS.16; //WC is Wind Chill

cout << "Please enter Temperature in Farenheit:";

cin >> F;

cout << "Please enter Wind Speed in mph";

cin >> WS;

if ( F >= -58 && F <= 41 || WS >= 2 );

cout << "Your Wind Chill in Farenheit is:" << WC;

else
cout << "One or more of your numbers inputed is invalid. Make sure your temperature is between -58 and 41 and your wind speed is greater than or equal to 2";

system ("Pause");

return 0;

}