enter command (? for help): b msg0
===[ msg0 ]===
enter command (? for help): b msg1
===[ msg1 ]===
     msg0
enter command (? for help): b msg2
     msg0
===[ msg2 ]===
     msg1
enter command (? for help): b msg3
     msg0
===[ msg3 ]===
     msg2
enter command (? for help): b msg4
     msg0
===[ msg4 ]===
     msg3
enter command (? for help): b msg5
     msg0
===[ msg5 ]===
     msg4
enter command (? for help): b msg6
     msg0
===[ msg6 ]===
     msg5
enter command (? for help): b msg7
     msg0
===[ msg7 ]===
     msg6
enter command (? for help): d
msg7
msg6
msg5
msg4
msg3
msg2
msg1
msg0
enter command (? for help): r
     msg0
===[ msg6 ]===
     msg5
enter command (? for help): d
msg6
msg5
msg4
msg3
msg2
msg1
msg0
enter command (? for help): r
     msg0
===[ msg5 ]===
     msg4
enter command (? for help): r
     msg0
===[ msg4 ]===
     msg3
enter command (? for help): d
msg4
msg3
msg2
msg1
msg0
enter command (? for help): b msg8
     msg0
===[ msg8 ]===
     msg4
enter command (? for help): r
     msg0
===[ msg4 ]===
     msg3
enter command (? for help): d
msg4
msg3
msg2
msg1
msg0
enter command (? for help): b msg9
     msg0
===[ msg9 ]===
     msg4
enter command (? for help): r
     msg0
===[ msg4 ]===
     msg3
enter command (? for help): r
     msg0
===[ msg3 ]===
     msg2
enter command (? for help): r
     msg0
===[ msg2 ]===
     msg1
enter command (? for help): d
msg2
msg1
msg0
enter command (? for help): q
quit