gap> A:=AbelianGroup([3]);;AbelianInvariants(A);   
[ 3 ]
gap>  K:=EilenbergMacLaneSimplicialGroup(A,3,8);
Simplicial group of length 8

gap> C:=ChainComplex(K);
Chain complex of length 8 in characteristic 0 . 

gap> Homology(C,7);                                          
[ 3, 3 ]
