import java.util.Arrays;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String a = in.nextLine();
        String[] b = a.split(" ");
        for (int i = 0; i < b.length - 1; i ++)
            if (b[i].length() > 0 || i ==0)
                System.out.print(b[i] + " ");
        System.out.print(b[b.length - 1]);
    }
}