import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		sc.close();
		String[] st = s.split("\\s+"); // 正则表达式 \\s+ 表示 一个或多个空白字符
		for (int i = 0; i < st.length; i++) {
			if(i == st.length - 1) System.out.print(st[i]);
			else {
				System.out.print(st[i]+" ");
			}
		}
		
	}
}