The following instruments are traded:

A straddle with strike price $K_{STR}=$$$100$ and maturity of one year is traded today at a price $ST{R}_0=$$$25.$

$,+$ put option with strike price $K_P=$$$95$ and maturity of year is traded today at a price $P_0=$$$30.$

A call option with strike price $K_C=$$$105$ and maturity of year is traded today at a price $C_0=$$$40.$

A bank account with $0\%$ interest per year.

What is the price of a butterfly introduced in the first problem in Group Assignment as Payoff B$?$