import sys

from pprint import pprint



A, V = list(map(int, sys.stdin.readline().strip().split()))

B, W = list(map(int, sys.stdin.readline().strip().split()))

T = int(sys.stdin.readline().strip())



d = abs(A - B)

if d == 0:

    print("YES")

elif V < W:

    print("NO")

else:

    if d <= T * (V - W):

        print("YES")

    else:

        print("NO")
import sys



A, V = list(map(int, sys.stdin.readline().split()))

B, W = list(map(int, sys.stdin.readline().split()))

T = int(sys.stdin.readline())



if W < V and abs(A - B) <= (V - W) * T:

    print("YES")

else:

    print("NO")
import sys
from pprint import pprint

A, V = list(map(int, sys.stdin.readline().strip().split()))
B, W = list(map(int, sys.stdin.readline().strip().split()))
T = int(sys.stdin.readline().strip())
d = abs(A - B)
if d == 0:
    print("YES")
elif V < W:
    print("NO")
else:
    if d <= T * (V - W):
        print("YES")
    else:
        print("NO")

import sys

A, V = list(map(int, sys.stdin.readline().split()))
B, W = list(map(int, sys.stdin.readline().split()))
T = int(sys.stdin.readline())
if W < V and abs(A - B) <= (V - W) * T:
    print("YES")
else:
    print("NO")

-from pprint import pprint -A, V = list(map(int, sys.stdin.readline().strip().split())) -B, W = list(map(int, sys.stdin.readline().strip().split())) -T = int(sys.stdin.readline().strip()) -d = abs(A - B) -if d == 0: +A, V = list(map(int, sys.stdin.readline().split())) +B, W = list(map(int, sys.stdin.readline().split())) +T = int(sys.stdin.readline()) +if W < V and abs(A - B) <= (V - W) * T: -elif V < W: +else: -else: -    if d <= T * (V - W): -        print("YES") -    else: -        print("NO")