C2 x (((C2 x C2 x C2 x C2) : C3) : C2)
r0 := (1,2)(3,5)(4,8)(6,7)(9,10);
r1 := (1,3)(2,4)(6,11)(7,10)(9,12);
r2 := (1,2)(3,6)(4,9)(5,7)(8,10)(11,12);
r3 := (1,2)(3,7)(4,10)(5,6)(8,9);
F := FreeGroup(4);
r0 := F.1;; r1 := F.2;; r2 := F.3;; r3 := F.4;;
G := F/[ r0^2, r3^2, r1^2, r2^2, (r2*r0)^2, (r0*r3)^2, (r2*r0*r3)^2, (r1*r3)^3, r0*(r2*r1)^2*r0*r1*r2*r1, r3*r1*r2*r1*r3*(r2*r1)^2, (r0*r1)^6, r1*r3*r0*r2*(r1*r0*r3)^2*r2*r1*r0*r3, (r3*r2*(r1*r0)^2*r1)^2 ];;
type 0: 8 elements
type 1: 24 elements
type 2: 4 elements
type 3: 4 elements