Given a string as input, use recursion to output each letter of the strings in reverse order, on a new line.
Sample Input
HELLO
Sample Output
O
L
L
E
H
def spell(txt):
#your code goes here
if len(txt) == 0:
return
temp = txt[0]
spell (txt[1:])
print(temp , end ='' )
txt = input()
spell(txt)