S0 = 414.74
r = 0.0311

P1 = 1/(1+r*3.5/12)
print(P1)

interpolated_call_px = function(K){
    - (13/10) * (K-420) + (7.5/10) * (K-410)
}
ic = interpolated_call_px(S0)
print(ic)

P2 = ic/(4*S0)
print(P2)

print(P1+P2)