#include<iostream>
using namespace std;
class stringprocessor
{
    public:
    static string removeVowels(string str)
    {
        for (int i=0;i<str.lenght();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.lenght(); 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;
}