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.
C1=input()
C2=input()
ans='Yes'
for i in range(3):
    if C1[i]!=C2[2-i]:
        ans='No'
print(ans)
C1=input()
C2=input()
if C1==C2[::-1]:
    print('YES')
else:
    print('NO')