C111113331333132322331333133313331331123231311212111133132213231   >>    C11111333133313232233133313331333133112323131121211113313221323   <<    C111113331333132322331333133313331331123231311212111133132213233   >>      C111113331333132322331333133313331331123231311212111133132213232   >>