Encoding my name (ATTRIEL)
Keeping the A, we encode the remaining characters
T:3
R:6
L: 4
After step 2 our string is A336ie4
Step 3 removes “adjacent digits”, leaving us with A36ie4
Step 4 removes non-encoded letters, giving us A364
Step 5 truncates to 3 digits, which is all we have.
The SNDX value for ATTRIEL is A-364