This is an option chain for options that expires in 110 days. You can assume T = 0.3 year

and there is no bid-ask spread, i.e. each option can be bought and sold at the same price.

calls	strikes	puts
13.46 11.81 10.26 8.83 7.53 6.36	50 52 54 56 58 60	0.66 1.00 1.44 2.00 2.68 3.50

For a call-constructed 52-60 bull spread, what is the breakeven underlying price at expiration?