Write a program to print a diamond made up of left- and right-aligned right-angled isosceles triangles, all of positive integer height specified by the user's keyboard input, as follows:
a) Print the diamond pattern
b) Accept user input for the height of the diamond
c) Calculate and print the left-aligned right-angled isosceles triangles
d) Calculate and print the right-aligned right-angled isosceles triangles