C132233133112121111331333133313331323133313233231333132333131232211   >>    C13223313311212111133133313331333132313331323323133313233313123221   <<    C132233133112121111331333133313331323133313233231333132333131232213   >>      C132233133112121111331333133313331323133313233231333132333131232212   >>