import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner sc=new Scanner(System.in);
String x=sc.next();
char ch[]=x.toCharArray();
int size=ch.length;
for(int i=0;i<ch.length;i++)
{
if(ch[i]>=65 && ch[i]<=90)
{
System.out.println(ch[i]);
}
}
}
}
plz correct my code where i went wrog