C111123313121111121111331333133313113313232233231333132313113313222333131   >>    C11112331312111112111133133313331311331323223323133313231311331322233313   <<    C111123313121111121111331333133313113313232233231333132313113313222333133   >>      C111123313121111121111331333133313113313232233231333132313113313222333132   >>