import sys



readline = sys.stdin.buffer.readline

MOD = 10 ** 9 + 7

INF = float('INF')

sys.setrecursionlimit(10 ** 5)





def main():

    a, v = list(map(int, readline().split()))

    b, w = list(map(int, readline().split()))

    t = int(eval(input()))



    dist = abs(b - a)

    vel = v - w



    if vel * t >= dist:

        print("YES")

    else:

        print("NO")





if __name__ == '__main__':

    main()

a, v = list(map(int, input().split()))

b, w = list(map(int, input().split()))

t = int(eval(input()))



dist = abs(b - a)

r_vel = v - w 



if r_vel * t >= dist:

    print("YES")

else:

    print("NO")
import sys

readline = sys.stdin.buffer.readline
MOD = 10**9 + 7
INF = float("INF")
sys.setrecursionlimit(10**5)


def main():
    a, v = list(map(int, readline().split()))
    b, w = list(map(int, readline().split()))
    t = int(eval(input()))
    dist = abs(b - a)
    vel = v - w
    if vel * t >= dist:
        print("YES")
    else:
        print("NO")


if __name__ == "__main__":
    main()

a, v = list(map(int, input().split()))
b, w = list(map(int, input().split()))
t = int(eval(input()))
dist = abs(b - a)
r_vel = v - w
if r_vel * t >= dist:
    print("YES")
else:
    print("NO")

-import sys - -readline = sys.stdin.buffer.readline -MOD = 10**9 + 7 -INF = float("INF") -sys.setrecursionlimit(10**5) - - -def main(): -    a, v = list(map(int, readline().split())) -    b, w = list(map(int, readline().split())) -    t = int(eval(input())) -    dist = abs(b - a) -    vel = v - w -    if vel * t >= dist: -        print("YES") -    else: -        print("NO") - - -if __name__ == "__main__": -    main() +a, v = list(map(int, input().split())) +b, w = list(map(int, input().split())) +t = int(eval(input())) +dist = abs(b - a) +r_vel = v - w +if r_vel * t >= dist: +    print("YES") +else: +    print("NO")