Write a Python program that should perform the following four tasks

Q. Write a Python program that should perform the following four tasks:

(i) After getting a word (of input) from the user, your program should use a while (or for) loop to print out each of the letters of the word. Just remember that strings in Python start with element 0.

(ii) Your program should then use another loop to print out each of the letters of the (same) word in reverse order.

(ii) Make a new variable that is the original word in reverse and print that variable. You can do this very easily in Python with a "string slice".

(iv) Ask the user for a letter to count. Use another loop to count how many times that letter appears in the original word. Print out this count.

Answer :- 

(i)

str = input ("Enter the Word :- ")
for i in range (len(str)) :
    print (str[i])

(ii)

i = len(str) - 1
while ( i > -1):
    print( str[i] )
    i -= 1

(iii)

newstr = str[-1 : : -1]
print (newstr)

(iv)

letter = input ("Enter a letter to count :- ") 
count = 0
for i in str :
    if i == letter :
        count += 1
print ("Number of letter :- ", count )

Output :-

Enter the Word :- PathWalla
P
a
t
h
W
a
l
l
a

a
l
l
a
W
h
t
a
P

allaWhtaP

Enter a letter to count :- a
Number of letter :-  3
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