import java.util.Scanner;

public class Converter {

	public static void main(String[] args) {
		Scanner keyboard = new Scanner(System.in);

		System.out.println("Welcome to the Fahrenheit/Celsius Converter!");
		System.out
				.println("To convert, type in your temperature and the identify if you are using fahrenheit or celsius.");
		System.out.println("Example: 69F or 69C F = Fahrenheit C = Celsius");

		String temperature;
		char f = 'f';
		char c = 'c';
		char C = 'C';
		double answer, temp;

		temperature = keyboard.nextLine();

		if (temperature.contains("C")) {
			temperature = temperature.replace(C, ' ');
			temp = Double.valueOf(temperature);
			answer = temp * 9 / 5 + 32;
			System.out.println("Poof! The temperature is " + answer + "F");
		} else {

			if (temperature.contains("c")) {
				temperature = temperature.replace(c, ' ');
				temp = Double.valueOf(temperature);
				answer = temp * 9 / 5 + 32;
				System.out.println("Poof! The temperature is " + answer + "F");
			} else {

				if (temperature.contains("F")) {
					temperature = temperature.replace(f, ' ');
					temp = Double.valueOf(temperature);
					answer = (temp - 30) * 5 / 9;
					System.out.println("Poof! The temperature is " + answer
							+ "C");
				} else {

					if (temperature.contains("f")) {
						temperature = temperature.replace(f, ' ');
						temp = Double.valueOf(temperature);
						answer = temp - 30 / 2;
						System.out.println("Poof! The temperature is " + answer
								+ "C");
					} else {
						System.out
								.println("You entered the temperature wrong!");
					}
				}
			}
		}
		keyboard.close();
	}
}