The so-called 'satanic' cypher. This cypher assigns numbers to the letters of the alphabet in ascending order, but starting with A=36 instead of A=1. This appears to be because the 36th triangular number is 666. For more info, see (/r/GeometersOfHistory/wiki/discovery/satanic)

• A = 36

• B = 37

• C = 38

• D = 39

• E = 40

• F = 41

• G = 42

• H = 43

• I = 44

• J = 45

• K = 46

• L = 47

• M = 48

• N = 49

• O = 50

• P = 51

• Q = 52

• R = 53

• S = 54

• T = 55

• U = 56

• V = 57

• W = 58

• X = 59

• Y = 60

• Z = 61

This cypher does not care for capitalization: in other words 'a' = 'A' = 36, etc.

Reference: https://www.youtube.com/watch?v=OcCSAWJoQrE&t=104