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

Scheduled Order	Job
1	C D E B A F

2	A E F C D B

3	C E F D A B

4	C D A B F E

5	A F C D B E

6	D F C E A B

For the schedule developed using Johnson's rule, the total length of time taken to complete the six jobs (including the 2nd operation) =

nothing

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