The Processing time in hours for the jobs when allocated to different machines is indicated below. Assign the machines for the jobs so that the total processing time is minimum?

M$1$

$9$

$43$

Jobs

J$4$

JS

J$2$

J$3$

$41$

$74$

$36$

M$2$

$22$

$78$

$28$

$42$

$11$

$57$

Machines

M$3$

M$4$

$58$

$11$

$50$

$19$

$72$

$91$

$27$

$63$

$37$

$49$

$39$

$22$

MS

$45$

$25$

J$1$