#include<iostream>
#include<string>
using namespace std;
class stringprocessor{
    public:
    static string removevowels(string str){
        fot(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++){
        cher 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;
}