C111113331333132322331333133313331333132313121111331311212111133133313113233231   >>    C11111333133313232233133313331333133313231312111133131121211113313331311323323   <<    C111113331333132322331333133313331333132313121111331311212111133133313113233233   >>      C111113331333132322331333133313331333132313121111331311212111133133313113233232   >>