#include<iostream>
using namespace std;
class StringProcessor
{
    public:
    static string removeVowels(string str){
        {
            for(int i= 0;i<str.length();i++){
                if(!((str[i]>='a'&& str[i]<='z')||(str[i]>='A'&& str[i]<='Z')||str[i]=='')){
                    return "Invalid input";
                }
            }
            string result = "";
            for(int i=0;i<str.length();i++){
                char ch = str[i];
                if (!(ch=='a'|| ch == 'e' || ch == 'i'|| ch=='o'|| ch=='u'|| ch=='A'|| ch=='E'|| ch=='I'|| ch=='O'|| ch=='U')){
                    result +=ch;
                }
            }
            return result;
        }
    };
    int main(){
        string str;
        getline(cin,str);
        cout<<StringProcessor::removeVowels(str);
        return 0;
    }
}