#include<iostream>
#include<cctype>
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;
}