#include<iostream>
#include<string>
using namespace std;
class Stringprocessor
{
    public:
    static string removeVowels(string str)
    {
        for (int i=0;i<str.length();i++)
            if (!((str[i]>='a'&&str[i]<='z')||
            (str[i]>='A'&& str[i]<='Z')||
            str[i]==' '))
            {
                return"Invalid input";
            }
    }
    string result="";
     for (int i=0; i < str.length(); i++)
    {
        char ch=str[i];
        if (!(ch=='a'||ch=='e'||ch==;'i'||
              ch=='o'||ch=='u'||
              ch=='A'||ch=='E'||ch=='I'||
              ch=='O'||ch=='U'))
              {
                  result+=ch;
              }
    }
    return result;
};
int main()
{
    string s;
    getline(cin,s);
    cout<<StringProcessor::removeVowels(s);
    return 0;
}