C11111333133313232233133313331333131133131133132313331333133313331333223313221   >>    C1111133313331323223313331333133313113313113313231333133313331333133322331322   <<    C11111333133313232233133313331333131133131133132313331333133313331333223313223   >>      C11111333133313232233133313331333131133131133132313331333133313331333223313222   >>