From\To

W1

W2

W3

Availability

Ui

S1

10

(4)

4

(10)

11 8

3

14

U1 = 0

S2

12 10

2

5 4

1

8

(10)

10

U2 = 0

S3

9

(4)

6 3

3

7

(2)

6

U3 = −1

Requirement

8

10

12

Vj

V1 = 10

V2 = 4

V3 = 8