C1111133313331323223313331333133313113313231333131211111311111221   >>    C111113331333132322331333133313331311331323133313121111131111122   <<    C1111133313331323223313331333133313113313231333131211111311111223   >>      C1111133313331323223313331333133313113313231333131211111311111222   >>