C111113331333132322331333133313331333132313131312111133132313113313123232321   >>    C11111333133313232233133313331333133313231313131211113313231311331312323232   <<    C111113331333132322331333133313331333132313131312111133132313113313123232323   >>      C111113331333132322331333133313331333132313131312111133132313113313123232322   >>