b) Create two classes DistMeter and DistFeet, which stores the values of distances. DistMeter stores in meter and cm and DistFeet in feet and inches. Write a program that read values for objects of both the classes and add object of DistMeter and DistFeet using friend function. A function should return equivalent meter in float. Also write main() function for illustration of the usage of the two classes DistMeter and DistFeet.