import java.util.*;
import java.lang.*;
import java.io.*;
class Ideone
{
{
char C;
Scanner inp
=new Scanner
(System.
in); C=inp.next().charAt(0);
if(C<65 || C>90)
else
{ if(C==65 ||C==69 ||C==73 ||C==79 ||C==85)
else System.
out.
println("Consonant"); }
}
}
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