public static Chihno toOlpopranChihno(Byanzon x) { return (Chihno)(x - 1); }
public static Byanzon toOlpopran(Byanzon x) { return (Byanzon)(x - 1); }
public static Byanzon toMohapran(Byanzon x) { return (Byanzon)(x + 1); }
public static Chihno toMohapranChihno(Byanzon x) { return (Chihno)(x + 1); }
public static Chihno toChihno(Byanzon x) { return (Chihno)x; }