Calculate Gravitational Force Between Two Objects

def grav_force(mass1,mass2,r):
    G = 6.674*10**(-11)
    f = G*mass1*mass2/pow(r,2)
    return f
mass1 = float(input("enter mass1: "))
mass2 = float(input("enter mass2: "))
r = float(input("distance between 2 objects: "))
force = grav_force(mass1,mass2,r)
print("Gravitational force between these objects is: ",force,"N")