/**
   Reads a file of month names and average temperatures in Celsius,
   and writes a file containing month names and average temperatures
   in Celsius.
*/

import java.io.FileReader;
import java.io.FileNotFoundException;
import java.util.Scanner;
import java.io.PrintWriter;

public class CityTemps
{
   public static void main(String[] args)
      throws FileNotFoundException
   {
      String inputFileName = "celsius.txt";
      String outputFileName = "fahrenheit.txt";

      FileReader fr = new FileReader(inputFileName);
      PrintWriter writer = new PrintWriter(outputFileName);

      try
      {
         String c = "";
         while(true)
         {
            int ch = fr.read();

            if(ch == -1)
               break;
            else if((char)ch == '\n')
            {
               writer.write(String.format("%f\n", (float)((Float.parseFloat(c)*(9/5))+32)));
               c = "";
            }
            else if(Character.isDigit((char)ch) || (char)ch == '.')
               c += (char)ch;
            writer.write((char)ch);
         }
      }
      catch(Exception e){}

      try
      {
         fr.close();
         writer.close();
      }
      catch(Exception e){}
   }
}