ДЗ 6 Н 2

s = 0
def pali (x):
    if x == x[::-1]:
        s = 1
    else:
        s=0
    return s
s += pali (x = input())
s += pali (x = input())
s += pali (x = input())
if s >= 1:
    print ("Yes")
else:
    print ("No")