# print ('hello world')
# print (3 + 2)
# print ((2*10) * (3 + 10))
# dogs = 2
# print (dogs + dogs)
# dogs = dogs * dogs * dogs
# print (dogs)
# mystring = 'school bus'
# print (mystring[0:4:2])
# print (mystring[7:10])
# print (len(mystring))
# print (mystring.upper())
# print (mystring.lower())
# newstring = mystring.split()
# print (newstring[1] + " " + newstring[0])
# print ("{} {}".format('Testing', 'Testing'))
# mylist = [x for x in 'word']
# print (mylist)