C1111121111331311211331333133313231333132213233313331333131133132313221321   >>    C111112111133131121133133313331323133313221323331333133313113313231322132   <<    C1111121111331311211331333133313231333132213233313331333131133132313221323   >>      C1111121111331311211331333133313231333132213233313331333131133132313221322   >>