// editor1
#include <iostream>
#include<string>
using namespace std;
int main(){
    string str;
    getline(cin,str);
    string result="";
    string vowels="aeiouAEIOU";
    for(char ch: str){
        if(!isalpha(ch) && ch!=' '){
            cout<<"invalid input";
            return 0;
        }
        if (vowels,find(ch)== string::npos){
            result+=ch;
        }
    }
    cout<<result;
    return 0;
}