import java.util.ArrayList;
import java.util.Arrays;
class TesteIndexOf
{
	private	static ArrayList al = new ArrayList();
	private static char tipo;

	public static void main(String[] args) 
	{
 
		al.add(new Character('A'));
		al.add(new Character('B'));
		al.add(new Character('C'));
		al.add(new Character('D'));
		al.add(new Character('E'));
		al.add(new Character('F'));

		Character ch = new Character( args[0].toCharArray()[0] );
		getTipo( ch );

	}


	public static void getTipo(Character var ){
		if	( al.indexOf( var ) >= 0 ) {
			System.out.println("Achou " + var);
		}
	}
}