#include <stdio.h>
#include <ctype.h>
void parse_shell_input(char *line) {
// Your logic here
int i=0;
char word[20];
while(line[i]==' ')
i++;
while(line[i]!='\0'){
if(line[i]==' '){
printf("\n");
while(line[i+1]==' ')
i++;
}
else{
printf("%c",line[i]);
}
i++;
}
return;
}
int main() {
char line[101];
fgets(line, sizeof(line), stdin);
parse_shell_input(line);
return 0;
}