#include <iostream>

using namespace std;

int main()

{

    float fahrenheit, celcius;

    int choice;

    cout << "Enter 1 : Fahrenheit to celcius nEnter 2 : Celcius to Fahrenheit" << endl; cin >> choice;

    if (choice == 1)

    {

        cout << "Enter the Fahrenheit value :" << endl; cin >> fahrenheit;

        celcius = (fahrenheit - 32) / 1.8;

        cout << "It is " << celcius << " degree celcius" << endl;

    }

    else if (choice == 2)

    {

        cout << "Enter the Celcius value :" << endl; cin >> celcius;

        fahrenheit = (1.8 * celcius) + 32;

        cout << "It is " << fahrenheit << " degree Fahrenheit" << endl;
    }
    else
    {
        cout << "Please enter a valid input" << endl;
    }
    return 0;
}