$6\mathrm{.}3$B$-1.$ Multiple Access protocols $(1).$ Consider the figure below, which shows the arrival of $6$ messages for transmission at different multiple access wireless nodes at times t$=0\mathrm{.}1,0\mathrm{.}8,1\mathrm{.}35,2\mathrm{.}6,3\mathrm{.}9,4\mathrm{.}2.$ Each transmission requires exactly one time unit.

For the pure ALOHA protocol, indicate which packets are successfully transmitted. You can assume that if a packet experiences a collision, a node will not attempt a retransmission of that packet until sometime after t$=5.$