# Write a Python program to shift last element to first position and first element to last position in a given list.  
 def shift_first_last(lst):
    x = lst.pop(0)
    y = lst.pop()
    lst.insert(0, y)
    lst.insert(len(lst), x)
    return lst

nums = [1,2,3,4,5,6,7]
print("Original list:")
print(nums)
print("Shift last element to first position and first element to last position of the said list:")
print(shift_first_last(nums))

chars = ['s','d','f','d','s','s','d','f']
print("\nOriginal list:")
print(chars)
print("Shift last element to first position and first element to last position of the said list:")
print(shift_first_last(chars))
