// editor1
#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 str;
     getline(cin, str);
     cout<<StringProcessor::removeVowels(str);
     return 0;
 }