C32133223331333131133132212111133133313331323223233123131112121   >>    C3213322333133313113313221211113313331333132322323312313111212   <<    C32133223331333131133132212111133133313331323223233123131112123   >>      C32133223331333131133132212111133133313331323223233123131112122   >>