#include <iostream>
using namespace std;

int main (){
	char aLetter;
	
	cout<<"Please enter a letter: "<<endl;
	cin>>aLetter;
	
	if ((aLetter>='a') && (aLetter<='z')) || ((aLetter>='A') && (aLetter>='Z')){
	
	  if (aLetter=='a' || aLetter=='A')
	   cout<<"Vowel A"<<endl;
	  else 
	   if (aLetter=='e' || aLetter=='E')
	    cout<<"Vowel E"<<endl;
	   else 
	    if (aLetter=='I' || aLetter=='i')
	     cout<<"Vowel I"<<endl;
	    else
	     if (aLetter=='O' ||aLetter=='o')
	      cout<<"Vowel O"<<endl;
	     else
	      if (aLetter=='u'||aLetter=='U')
	       cout<<"Vowel U"<<endl;
	      else
	       cout<<"consonant"<<endl;}
	else 
	 cout<<"NOT A LETTER"<<endl;
	 
    end if
    return o;
	
	
}