#include<iostream>
#include<string>
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;
}