#include<iostream>
#include<string>
using namespace std;
bool check(string s)
{
    for(char i:s)
    {
        if(!isalpha(i) && i! =' ')
        return true;
    }
    return false;
}
int main()
{
    string str;
    getline(cin, str);
    if(check(str))
    {
        cout<<"Invalid input";
        return 0;
    }
    else if(! (str.size()>=1 && str.size()<=10000))
    return 0;
    else
    {
        string rs="";
        for(char i:str)
        {
            if(i == 'A' || i == 'E' || i == 'I' || i == 'O' || i == 'U' || i == 'a' || i == 'e' || i == 'i' || i == 'o' || i == 'u')
            continue;
            else
            rs += i;
        }
        cout << rs << endl;
    }
    return 0;
}