Write MATLAB code to verify put-call parity with the following data:
Strikes varying between 35 and 65 in steps of 5; riskless rate = 3% per year; volatility varying between 20% and 60% in steps of 5%; current spot varying between 40 and 55 in steps of 5; maturity varying between 1 months in 9 months in increments of 1 month.