Format a date in shortest format possible indicating how many days have passed (Past date)
If date1-date2 < 8 Sat, Fri, …
If date1-date2 < 350 Dec24, Jan4, Aug14
Else 2020Feb4
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6174 Kaprekar’s constant
This is the spreadsheet to prove this constant. When all roads lead to Kaprekar
Just enter any 4 digits number in D3 and watch roads walk you 6174