or download this
#!usr/bin/perl
use strict;
...
ClusterX a_123(something) b_675(some_other_thing) b_234(something new
+) c_897(some different thing)
ClusterY b_6998(some_other_thing, thats new) c_877797(something diff
+erent inside here) c_111(some other different thing)
ClusterZ a_1234(something interesting) a_123467(something - else thats
+ is - interesting) 3850-1-2_12243(a new one) 3850-1-2_1789(another n
+ew one)