story goes like this.
When S56 had LOs, 9030 9142 9144 9148 9150 were the permers. 9150
was the Carrier bus, while 9148 was Carlsberg (still remember i was
singing the commercial song when the bus roars past my house when I
was young 
anyone
still know the song? 
).
Then we fast forward to 2003 when VSOs were on 56. 9815 - 9819 were
the initial perms. When 9815 went to 143, it got swapped with 9012.
9012 later went back to 143 and 9051 came from 143. After 9051 was
9136 which came from goodness knows where which I forgot at the
moment. 9136 stayed until the S30 VOs got transferred to amdep in
late 2004.
Then another round of rojak for the S56 DDs happened.
