A, V = list(map(int, input().split()))

B, W = list(map(int, input().split()))

T = int(eval(input()))

res = False

if B > A:

    A = A + V*T

    B = B + W*T

    if A >= B:

        print('YES')

    else:

        print('NO')

else:

    A = A - V*T

    B = B - W*T

    if A <= B:

        print('YES')

    else:

        print('NO')
A, V = list(map(int, input().split()))

B, W = list(map(int, input().split()))

T = int(eval(input()))

if B > A:

    A = A + V*T

    B = B + W*T

    if A >= B:

        print('YES')

    else:

        print('NO')

else:

    A = A - V*T

    B = B - W*T

    if A <= B:

        print('YES')

    else:

        print('NO')
A, V = list(map(int, input().split()))
B, W = list(map(int, input().split()))
T = int(eval(input()))
res = False
if B > A:
    A = A + V * T
    B = B + W * T
    if A >= B:
        print("YES")
    else:
        print("NO")
else:
    A = A - V * T
    B = B - W * T
    if A <= B:
        print("YES")
    else:
        print("NO")

A, V = list(map(int, input().split()))
B, W = list(map(int, input().split()))
T = int(eval(input()))
if B > A:
    A = A + V * T
    B = B + W * T
    if A >= B:
        print("YES")
    else:
        print("NO")
else:
    A = A - V * T
    B = B - W * T
    if A <= B:
        print("YES")
    else:
        print("NO")

-res = False