C111123313121111121111331333133313331322121111331333131133133313231333221   >>    C11112331312111112111133133313331333132212111133133313113313331323133322   <<    C111123313121111121111331333133313331322121111331333131133133313231333223   >>      C111123313121111121111331333133313331322121111331333131133133313231333222   >>