#include <stdio.h>

int main() {
	int c, nb;
	char inWord = 0;
	while ((c = getchar()) != EOF) {
		if (c == ' ' || c == '\n' || c == '\t') {
			inWord = 0;
		}
		else if (inWord == 0) {
			putchar('\n');
			inWord = 1;
		}
		putchar(c);
	}
	return 0;
}