Python code for first two and last two charaters prints and remaining prints astrik

Python code for first two and last two charaters prints and remaining prints astrik 

    s=input()

    r=""

    for i in range(len(s)):

        if(i==0 or i==1 or i==len(s)-1 or i==len(s)-2):

            r+=s[i]

        else:

            r+="*"

    print(r)