#!/usr/bin/env python
# coding: utf-8

# In[2]:


import math 
a = input('Enter a:')
a = int(a)
b = input('Enter b:')
b = int(b)
c = input('Enter c:')
c = int(c)
(math.sin(60)-b)/(math.fabs(b)+math.cos(30))+a


# In[ ]:




