C111113331333133312112113313331333133313231333131133132313233311   >>    C11111333133313331211211331333133313331323133313113313231323331   <<    C111113331333133312112113313331333133313231333131133132313233313   >>      C111113331333133312112113313331333133313231333131133132313233312   >>