tardonly

a = input("enter line with apostrophe:")
a= a.split()
b=[]
for i in range(len(a)):
	b.append(a[len(a)-i-1])
print(b)

tardonly

a=raw_input('enter list:')
a=eval(a)
b=[]
for i in a:
	if i not in b:
		b.append(i)
print(b)

tardonly

a=raw_input('enter list:')
a=eval(a) 
if len(a)<=1:
	print([a[0]])
else:
	print([a[0],a[len(a)-1]])