I found an interesting problem on https://atcoder.jp/contests/abc077/tasks/abc077_a:
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.

-----Constraints-----
 - C_{i,j}(1 \leq i \leq 2, 1 \leq j \leq 3) is a lowercase English letter.

-----Input-----
Input is given from Standard Input in the following format:
C_{11}C_{12}C_{13}
C_{21}C_{22}C_{23}

-----Output-----
Print YES if this grid remains the same when rotated 180 degrees; print NO otherwise.

-----Sample Input-----
pot
top

-----Sample Output-----
YES

This grid remains the same when rotated 180 degrees.

I tried it in Python, but could not do it. Can you solve it?
c1 = input()
c2 = input()
print("YES" if c1 == c2[::-1] else "NO")