num1=input()
if num1==num1[::-1]:
    print("yes")
else:
    print("no")

32243bab4d3f9b98f8441ed361baaed8b3b4e6db
<mask token>

<mask token>
if num1 == num1[::-1]:
    print('yes')
else:
    print('no')

num1 = input()
if num1 == num1[::-1]:
    print('yes')
else:
    print('no')

num1=input()
if num1==num1[::-1]:
    print("yes")
else:
    print("no")
