#include<iostream>
#include<string>
#include<cctype>
using namespace std;

int main()
{
    std::string str,result="";
    std::getline(std:cin,str);
    
    for(char c:str){
        if(!std::isalpha(c)&&!std::isspace(c)){
            std::cout<<"Invalid input"<<std:;;endl;
            return 0;
        }
        char lowerC = std::tolower(c);
        if(!(lowerC == 'a' || lowerC == 'e' || lowerC == 'i' || lowerC == 'o' || lowerC == 'u' )){
            result +=c;
        }
    }
    std::cout<< result << std::endl;
    return 0;
}