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