22-nested-func-calls.py

# nested function calls = function calls inside other function calls 
#                         innermost function calls are resolved first 
#                         returned value is used as argument for the next outer function 

# num = input("enter a whole positive number: ")
# num = float(num)
# num = abs(num)
# num = round(num)
# print(num)


print(round(abs(float(input("enter a whole positive number: ")))))