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["날짜의 일련번호 구하기"]
[]
["년","월","일","일련번호"]
[2013,9,17,{"$f":"DATE(A4,B4,C4)","v":41534}]
[1545,4,28,{"$f":"DATE(A5,B5,C5)","v":564419}]
[0,1,1,{"$f":"DATE(A6,B6,C6)","v":1}]
[1900,7,31,{"$f":"DATE(A7,B7,C7)","v":"1900-07-31"}]
[1950,6,25]
[2013,13,45]