#include <bits/stdc++.h>
using namespace std;
int main()
{
int i,j;
char c;
cin>>c;
c=tolower(c);
switch(c)
{
case 'a':
case 'e':
case 'i':
case 'o':
case 'u':
cout<<"Vowel"<<endl;
break;
default:
cout<<"consonent"<<endl;
break;
}
return 0;
}
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