#include <iostream>
#include <string>
using namespace std;

int main(){
string str;
getline(cin, str);
for(char c : str) {
    if (!(isalpha(C) || c ==' ')){
        cout << "Invalid input";
        return 0;
    }
}
string result = "";
for (char c : str) {
    char lower = tolower(c);
    if (lower != 'a' && lower != 'e' && lower != 'i' &&
        lower != 'o' && lower != 'u'){
            result +=c;
        }
}
cout << result;
return 0;
}