Print Only Alphabets In Python

A string S is passed as the input. S can contain alphabets, numbers and special characters. The program must print only the alphabets in S.

Input Format:
The first line contains S.

Output Format:
The first line contains only the alphabets in S.

Boundary Conditions:
The length of the input string is between 1 to 1000.

Example Input/Output 1:
Input:
abcd_5ef8!xyz

Output:
abcdefxyz

Example Input/Output 2:
Input:
1239_-87

Output:

Explanation:
As there are no alphabets in the input value nothing is printed as output.

s=input().strip()
for i in s:
    if i.isalpha():
        print(i,end="")