Generalize string output in python

Question

Anyone who can assist please how do I generalize syntax to print 1st and last work of a string in python, from an unknown user input? #newbie

Answer 1

s = str(input()).split(" ")

print(s[0], s[-1])

#input: this is a string
#output: this string

Answer 2

# txt = input()
txt = "Hello world"
print(txt[0], txt[-1]) # H d

Answer 3

txt = input()

Answer 4

first and last letter actually , my bad

Answer 5

First and last 'work'?