Using Johnson's rule for 2-machine scheduling, the sequence is Scheduled Order So 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 1 2 V 3 4 Job B D E F Operation 1 (hours) 4 10 3 14 6 7 Operation 2 (hours) 8 5 11 14 1 12 5 5 For the schedule developed using Johnson's rule, the total length of time taken to complete the sixjobs (including the 2nd operation) -hours (enter your response as a whole number)