package FourthTest;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class LetterExpression {

    public static void main(String[] args) {

        StringBuilder string = new StringBuilder();

        try{
            string = read();
        }catch (IOException e){
            e.printStackTrace();
        }

        doAritmetics(string.toString());

    }

    private static StringBuilder read () throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        StringBuilder line = new StringBuilder();
        line.append(reader.readLine());

        return line;
    }

    private static void doAritmetics(String line) {
        int sum = 0;
        String operation;
        int lineL = line.length();
        float number;
        for(int i = 0; i < line.length() ; i++) {
            if(Character.isDigit(line.charAt(i))) {
                number = findNum(i, lineL, line);
            }

        }
    }

    private static float findNum(int index, int lenght, String line) {
        StringBuilder num = new StringBuilder();
        for(int i = index; i < lenght; i++) {
            if(Character.isDigit(line.charAt(i))) {
                    num.append(line.charAt(i));
                    System.out.println(num);

            }else if(i + 1 != lenght - 1) {
                if(line.charAt(i) == '.' && Character.isDigit(line.charAt(i + 1))) {
                    num.append('.');
                }
            }
        }
        float number = Float.valueOf(num.toString());
        return number
    }

}