from decimal import *



l=list(map(int, input().split(' ')))

a=l[0]

v=l[1]

l=list(map(int, input().split(' ')))

b=l[0]

w=l[1]

s=int(eval(input()))

ans=True

if a>b:

    ans=Decimal(a)-Decimal(v*s)<=Decimal(b)-Decimal(w*s)

else:

    ans=Decimal(a)+Decimal(v*s)>=Decimal(b)+Decimal(w*s)

if ans:

    print("YES")

else:

    print("NO")

    





l=list(map(int, input().split(' ')))

a=l[0]

v=l[1]

l=list(map(int, input().split(' ')))

b=l[0]

w=l[1]

s=int(eval(input()))

ans=True

if a>b:

    ans=a-v*s<=b-w*s

else:

    ans=a+v*s>=b+w*s

if ans:

    print("YES")

else:

    print("NO")

    



from decimal import *

l = list(map(int, input().split(" ")))
a = l[0]
v = l[1]
l = list(map(int, input().split(" ")))
b = l[0]
w = l[1]
s = int(eval(input()))
ans = True
if a > b:
    ans = Decimal(a) - Decimal(v * s) <= Decimal(b) - Decimal(w * s)
else:
    ans = Decimal(a) + Decimal(v * s) >= Decimal(b) + Decimal(w * s)
if ans:
    print("YES")
else:
    print("NO")

l = list(map(int, input().split(" ")))
a = l[0]
v = l[1]
l = list(map(int, input().split(" ")))
b = l[0]
w = l[1]
s = int(eval(input()))
ans = True
if a > b:
    ans = a - v * s <= b - w * s
else:
    ans = a + v * s >= b + w * s
if ans:
    print("YES")
else:
    print("NO")

-from decimal import * - -    ans = Decimal(a) - Decimal(v * s) <= Decimal(b) - Decimal(w * s) +    ans = a - v * s <= b - w * s -    ans = Decimal(a) + Decimal(v * s) >= Decimal(b) + Decimal(w * s) +    ans = a + v * s >= b + w * s