FOSSIL = input()
f = 0
for i in range(3):
    while len(FOSSIL) > 0 and FOSSIL[0] != ".":
        f *= 10
        f += int(FOSSIL[0])
        FOSSIL = FOSSIL[1:]
    f *= 100
J = input()
g = 0
for i in range(3):
    while len(J) > 0 and J[0] != ".":
        g *= 10
        g += int(J[0])
        J = J[1:]
    g *= 100
if g <= f:
    print("YES")
else:
    print("NO")