Level 50-100 Hero playing 3k in MP. Folds round we have

and min.
Don't really want to get into a pot with the cutoff(3450) or hijack(2820) at
this stage plan to snap any shoves from the last three players who are all short.
Cutoff and Hijack both flat button predicatively shoves for 1125 folds back to hero.
What do we do here? All three players are tight over small sample(-40hands)