#include<iostream>
#include<string>
#include<cctype>
using namespace std;
strinjg removeVowels(string str){
    string result = "";
    for(char c : str){
        if(!isalpha(c) && !isspace(c)){
            return "Invalid input";
        }
        char lowerC = tolower(c);
        if(lowerC != 'a' && lowerC != 'e' && lowerC != 'i' && lowerC != 'o' && lowerC != 'u'){
            result += c;
        }
    }
    return result;
}
int main(){
    string str;
    getline(cin, str);
    cout<<removeVowels(str)<<endl;
    return 0;
}