Develop Digital Address Algorithm

We are looking for a bright software engineer that could develop an Algorithm to encode and decode the longitude and latitude into a digital address that in a format below. 1. Format [MP] – [0013] [5590] [Letter#1 Letter#2] - [Number #1] [Number #2] With two-letter prefix (English alphabet) - and 2 sets of 4 numbers. Letter #1: ABDEFGKMNPRSUVWXYZ [18 character available] Letter #2: NPRSUFGKMVWXYZABDE [18 character available] Note: The use of Letter #1 and Letter # must base on the order character set above. It can be change or shuffle the order later. [number #2]: 0000 to 9999 [number #2]: 0000 to 9999 2. Range of the latitude/longitude we will cover only (Laos): -Latitude of 13 Degree North to 23 Degree North OR: 13.00000000 to 23.00000000 (1 billion different numbers) -Longitude of 100degree East to 110 degrees East Or: 100.00000000 to 110.00000000 (1 billion of different number) 3. Resolution of the longitude and latitude For Radian Format: 17°58'38.911"N 102°37'35.442"E Need 3 decimal points for seconds unit for radian format For decimal format 17.17631315, 104.89793213 Need 8 decimal points for decimal Available Address: We know that with this the format we want, we will have about 32.4 billion addresses to cover. 18*18*10^4*10^4 = 32,400,000,000 With longitude/latitude range we need to cover, and with the resolution 8 decimal point we required only 2 billion addresses.   Requirement for the address: Digital Address generation: Encode: > Given latitude and longitude as input (must contain 8 decimal points) > Output as digital address >If out of the range coverage >give error message address is not found Decode: >Given the Digital Address as input >Output as longitude and latitude with the same resolution (8 decimal points) Working with Google Plus code: Google Plus code is opensource project. You can find the code here [login to view URL] [login to view URL] Convert to Google Plus: >Given Digital Address >convert into latitude and longitude > convert into Google Plus code Convert from Google Plus: >Given Google Plus code >covert into latitude and longitude >If out of the range of coverage >give error message address is not found >If in range of coverage >convert into Digital Address format