import math
class TripleAndHalve:
def __init__(self, number):
self.__number = number
def triple(self):
return self.__number * 3
def halve(self):
return self.__number / 2
def print_number(self):
return self.__number
t1 = TripleAndHalve(4)
print(t1.triple())
print(t1.halve())
print(t1.print_number())