#include <stdio.h>
#define IN 0
#define OUT 1
void main()
{
int c, state = OUT;
while ((c = getchar()) != EOF) {
if (c == ' ' || c == '\n' || c =='\t') {
if (state == IN) {
putchar('\n');
state = OUT;
}
continue;
putchar(c);
state = IN;
if (state == IN)