C111123313121111121111331333133313331323231333133313331333131133133322313321   >>    C11112331312111112111133133313331333132323133313331333133313113313332231332   <<    C111123313121111121111331333133313331323231333133313331333131133133322313323   >>      C111123313121111121111331333133313331323231333133313331333131133133322313322   >>