import java.util.*;
public class readthis {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String s;
s = sc.next();
if(s.length()==1) {
if(Character.isUpperCase(s.charAt(0))) {
System.out.println(s);
}
}
for(int i=0;i<s.length();i++) {
if(Character.isUpperCase(s.charAt(i))) {
for(int j=i+1;j<s.length();j++) {
if(Character.isUpperCase(s.charAt(j))) {
System.out.println(s.substring(i,j));
j=s.length();
}
else if (j==s.length()-1) {
System.out.println(s.substring(i,j+1));
}
}
}
}
}
}