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.
l=open(0).read()
m=l[::-1]
print(["no","yes"][l==m])
print(["NO","YES"][input()==input()[::-1]])