#include <iostream>
using namespace std;

int main()
{
    string str;
    getline(cin,str);
    
    for(int i=0;i<str.length();i++)
    {
        if(!isalpha(str[i])&&str[i]!=' ')
        {
            cout<<"Invalid input";
            return 0;
        }
    }
    for (int i = 0; i<str.length();i++)
    {
        char ch=tolower(str[i]);
        if (!(ch =='a'&&ch == 'e'|&&ch == 'i'&&ch =='o'&&ch == 'u'))
        {
            cout<<str[i];
        }
    }
return 0;
}