#include<iostream>
#include<string>
#include<cctype>
using namespace std;
int main()
{
    string str;
    string result="";
    string vowels="aeiouAEIOU";
    getline(cin,str);
    for(char ch:str)
    {
        if(!isalpha<(ch) && ch != ' ')
        {
            cout<<"Invalid input";
            return 0;
        }
        if(vowel.find(ch)==string::npos)
        {
            result+=ch;
        }
    }
    cout<<result;
    return 0;
}