In this system every file name has to start with the date as a prefix.
Tips
memory
前 "in front" + 缀 "to stitch on": a piece stitched on in front. Its partner is 后缀, suffix, and both are 词缀, affixes. Chinese has only a handful of true prefixes, such as 老 in 老师 and 阿 in 阿姨.