r1:=(1,2,3,4,5,6,7,8,9,10,11,12);
r2:=(1,13,14,15,16,17,7,18,19,20,21,22);
r3:=(4,30,29,20,28,27,10,26,25,15,24,23);

g:=(15,12,21,18,30,27,14,20,6,16,13,26,23,19)(25,24,29,28)(17,22);

G:=Group(r1,r2,r3);

Read("c:/gap/gap3r4p3/lib/abstab.g");