#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::removevowel(str);
    return 0;
}