#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;
}