#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
using namespace std;
{
    bool constainsInvalidChars(const std::string& str){
        for(char c:str){
            if(!std::isalpha(static_cast<unsigned char>(c)) && c!=''){
                return true;
            }
        }return false;
    }
    std::string removeVowels(std::string str){
        std::string result="";
        std::string vowels+"aeiouAEIOU";
        for(char c:str){
            if(vowels.find(c)==std::string::npos){
                result +=c;
            }
        }
        return result;
        
    }
}
  int main()
  {
      std::string str;
      std::getline(std::cin,str);
      if(containsInvalidChars(str)){
          std::cout<<"Invlaid input"<<std::endl;
      }else{
          std::string result=removeVowels(str);
          std::cout<<s=result<<std::endl;
      }
      return 0;
  }