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.
s = input()
t = input()

if s[0]==s[2] and s[1]==t[1] and s[2]==s[0]:
  print("YES")
else:
  print("NO")
s = input()
t = input()
 
if s[0]==t[2] and s[1]==t[1] and s[2]==t[0]:
  print("YES")
else:
  print("NO")