It is given that, 
'Dream Plan Execute Repeat' is coded as '@2L Σ3K @4R Σ5C'
'Be fearless and unstoppable' is coded as 'Σ0C Σ9C @6Q Σ1B'
'Push Harder Than Yesterday' is coded as '%7W @4P @2F @2L'
'Find Your Inner Strength' is coded as '@2B Σ3P @6F @2P'
From the above illustration, we can conclude the following logics: 
For alphabets: 
The last letter of each word is replaced by the 2nd previous alphabet according to the English alphabetical series. 
Example: In word 'Dream', the last letter is 'M'. So, M  -  2 = K. 
For digits: 
For each word, 2 is subtracted from the total number of letters present in that word. 
Example: In word 'Dream', the total number of alphabets are 5. So, 5  -  2 = 3. 
For symbols:
The logic for symbol depends on the total number of letters present in the word.
If total number of alphabet is an odd composite number, then the symbol % is used. 
If total number of alphabet is an even composite number, then the symbol @ is used. 
If total number of alphabet is a prime number, then the symbol Σ is used. 
Similarly, we get: 
| Words | Codes | 
| Dream | Σ3K | 
| Plan | @2L | 
| Execute | Σ5C | 
| Repeat | @4R | 
| Be | Σ0C | 
| Fearless | @6Q | 
| And | Σ1B | 
| Unstoppable | Σ9C | 
| Push | @2F | 
| Harder | @4P | 
| Than | @2L | 
| Yesterday | %7W | 
| Find | @2B | 
| Your | @2P | 
| Inner | Σ3P | 
| Strength | @6F | 
According to the logics, 
Traditional is coded as Σ9J 
Meadow is coded as @4U. 
So, Traditional Meadow is coded as Σ9J @4U (in any order).