Write a program where you declare 4 variables (a, b,c, d) and the variables return 'True' for the following statements: a < d: True
b > c: True
c <= a: True
d >= b: True
a == a: True
b != c: True
b > a and d > c: True
b > a or d < b True
not(b < a and d > b): True

Need the code to be in Python