#include <stdio.h>
#include <ctype.h>
void parse_shell_input(char *line) {
// Your logic here
int flag = 0;
for(int i=0;i<100;i++) {
if (line[i] == '\0') {
return;
}
if(line[i] == ' ' && flag != 1) {
flag = 1;
printf("\n");
continue;
}
else if (line[i] == ' ') {
continue;
}
printf("%c", line[i]);
flag = 0;
}
}
int main() {
char line[101];
fgets(line, sizeof(line), stdin);
parse_shell_input(line);
return 0;
}