import java.util.*;
import java.lang.*;

class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
    String text = "quick! brown? fox jumps.over! the lazy dog?";
    String[] ss = text.split("(?<=[.!?])\\s*");
    for (String s : ss) {
        System.out.println(s);
    }
	}
}