In a certain coded language, if 'SCRABBLE' is coded as '19318122125', how will 'STUNNED' be coded in that language?

1. Analyze the coding scheme of the word SCRABBLE:
* Let's list the positional values of letters in the standard English alphabet ($A=1,B=2,\dots ,Z=26$):

$$\text{S}=19,\text{C}=3,\text{R}=18,\text{A}=1,\text{B}=2,\text{B}=2,\text{L}=12,\text{E}=5$$

* Concatening these values gives: $19+3+18+1+2+2+12+5=19318122125$. This matches the given code.

2. Apply the same logic to the word STUNNED:
* Find alphabetical positional values:

$$\text{S}=19$$

$$\text{T}=20$$

$$\text{U}=21$$

$$\text{N}=14$$

$$\text{N}=14$$

$$\text{E}=5$$

$$\text{D}=4$$

* Concatening these positional numbers together: $192021141454$.