C111123313121111121111331333133313221333131121211113313231333133322311   >>    C11112331312111112111133133313331322133313112121111331323133313332231   <<    C111123313121111121111331333133313221333131121211113313231333133322313   >>      C111123313121111121111331333133313221333131121211113313231333133322312   >>