
# coding: utf-8

# In[29]:


import math
dia= 12
volume= (4/3)*math.pi*dia**3
print(volume)


# In[15]:


list1 = ['1', '2', '3']
str1 = ''.join(list1)
print(str1)


# In[10]:


mylist = ['spam', 'ham', 'eggs']
print ', '.join(mylist)

