My friend just sent me this

5627 4654554

With a keyword of 'Digital'

Which is apparently going to make this have some sense:

At first, it's difficult to understand. But once you read down, you will see.

  • $\begingroup$ I suggest adding hint now, if you can. $\endgroup$ – Preet Dec 14 '17 at 4:43
  • $\begingroup$ Looking at the numbers, when displayed on a digital clock, they become letters (when upside down). HSSHSGH LZGS. Given letter combination "HSSHS" I am thinking that it could correspond to a digraph substitution chart perhaps? $\endgroup$ – mkinson Feb 7 '18 at 15:41
  • $\begingroup$ If you rot41 this you get: deaf cedcddc $\endgroup$ – Yout Ried Aug 21 '18 at 4:43

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