'''
def reverse(s):
    s= list(s)
    l , r=0, len(s)-1
    while l<r:
        s[l],s[r] = s[r], s[l]
        l=l+1
        r=r-1
    return "".join(s)
   '''
'''  
def reverse(s):
    return s[::-1]
'''
'''
def reverse(s):
    result =''
    for char in s:
        result = char + result
    return result
'''
'''
def reverse(s):
    return ''.join(reversed(s))
'''

input_string="Narendra"
print(reverse(input_string))