Largish stack with AQo in CO facing UTG limp and shortstack shove

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My table broke a few hands earlier, and this is my first rotation at this table. I really need help with my bigger stack play, and this is a common situation that gives my problems. What do I do, facing UTG's limp and MP1 shove?

Poker Stars, $5 + $0.50 NL Hold'em Tournament, 200/400 Blinds, 8 Players
LeggoPoker Hand History Converter

BTN: 12,751
SB: 9,753
BB: 9,865
UTG: 18,408
UTG+1: 18,411
MP1: 6,324
MP2: 6,315
Hero (CO): 19,555

Pre-Flop: (800) Q[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (CO)
UTG folds, UTG+1 calls 400, <font color="red">MP1 raises to 6,299 and is All-In</font>, 1 fold, Hero ???[/i]