#include <stdio.h>
#include <ctype.h>
void parse_shell_input(char *line) {
// Your logic here
int i = 0, c = 0, r = 0;
char tokens[10][20];
while(line[i] != '\0' && line[i] != '\n'){
if(line[i] != ' '){
if(c < 19){
tokens[r][c] = line[i];
c++;
}
}
else{
if(c > 0){
tokens[r][c] = '\0';
c = 0;
r++;
}
}
i++;
}
if(c > 0){
tokens[r][c] = '\0';
r++;
}
for(int j = 0; j < r; j++){
printf("%s\n",tokens[j]);
}
}
int main() {
char line[101];
fgets(line, sizeof(line), stdin);
parse_shell_input(line);
return 0;
}