Score : 100 points
You are given a grid with 2 rows and 3 columns of squares. The color of the square at the i-th row and j-th column is represented by the character C_{ij}.
Write a program that prints YES
if this grid remains the same when rotated 180 degrees, and prints NO
otherwise.
Input is given from Standard Input in the following format:
C_{11}C_{12}C_{13} C_{21}C_{22}C_{23}
Print YES
if this grid remains the same when rotated 180 degrees; print NO
otherwise.
pot top
YES
This grid remains the same when rotated 180 degrees.
tab bet
NO
This grid does not remain the same when rotated 180 degrees.
eye eel
NO