Using Johnson's rule for 2-machine scheduling, the sequence is:

Scheduled Order	Job
1	A, E, F, C, B, D

2	B, E, C, F, A, D

3	F, B, A, E, D, C

4	B, E, D, A, C, F

5	E, C, B, F, A, D

6	C, F, E, B, A, D

For the schedule developed using Johnson's rule, the total length of time taken to complete the six jobs (including the 2nd operation) = ___ hours (enter your response as a whole number).

Six jobs are to be processed through a two-step operation. The first operation involves sanding, and the second involves painting. Processing times are as follows:

Job Operation 1 (hours) Operation 2 (hours) A 10 8 B 3 4 C 6 2 D 12 7 E 5 1 F 14 13