Use Base 12 (Dek = X, El = Ɛ), Don't spell out numbers (except one).
To convert into base twelve (note that A=X & B=Ɛ): Also spell Do as doeh Gro as groeh & Mo as moeh
https://www.unitconverters.net/numbers/base-10-to-base-12.htm
Also pretend that the T in the number system is a 7 with a line through it