15/12/3 2.6% 3-bet

is this easy, or am i overthinking

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

CO ($223.85)
Button ($100)
SB ($171.50)
BB ($141.10)
UTG ($100)
Hero (UTG+1) ($137.55)
MP1 ($117.20)
MP2 ($100)
MP3 ($100)

Preflop: Hero is UTG+1 with K, K
1 fold, Hero bets $4, 2 folds, MP3 calls $4, CO raises to $16, 3 folds, Hero raises to $36, 1 fold, CO raises to $223.85 (All-In), Hero?