/* Convert Fehrenheit to Celsius.
   Arithmetic expressions, type conversions, casting */

import java.io.*;

class Celsius {

  public static void main (String[] args) throws IOException {

    final int base  = 32;
    int fahrenheit;

    BufferedReader stdin;
    stdin = new BufferedReader (new InputStreamReader (System.in));

    System.out.print ("Enter the temperature: ");
    fahrenheit = Integer.parseInt (stdin.readLine());
        
    System.out.println ("Celsius equivalent is: " + ((float)fahrenheit-base)*5/9);
  
  }
}