#include <stdio.h>
#include <ctype.h>
void parse_shell_input(char *line) {
while(*line != '\0'){
if(*line == ' ')
if(*(line - 1) != ' ')
putchar('\n');
else;
else
putchar(*line);
line++;
}
}
int main() {
char line[101];
fgets(line, sizeof(line), stdin);
parse_shell_input(line);
return 0;
}