C2 x ((C3 x ((C3 x C3) : C3)) : (C2 x C2))
r0 := (2,4)(5,8)(6,9)(7,14)(10,21)(11,18)(12,25)(13,20)(15,29)(16,30)(17,35)(19,38)(22,31)(23,27)(24,37)(26,33)(28,40)(32,48)(34,49)(36,50)(39,44)(41,47)(42,45)(43,53)(46,54)(51,52);
r1 := (1,2)(3,7)(5,10)(6,12)(8,17)(9,19)(11,23)(13,27)(15,31)(16,33)(18,20)(21,35)(22,41)(24,43)(25,38)(26,44)(28,46)(29,47)(30,39)(32,45)(34,42)(36,37)(40,51)(48,49)(50,53)(52,54);
r2 := (2,5)(4,8)(6,13)(7,15)(9,20)(10,21)(11,24)(12,25)(14,29)(16,34)(18,37)(19,36)(22,31)(23,27)(26,33)(28,32)(30,49)(38,50)(39,51)(40,48)(42,45)(43,53)(44,52)(46,54);
r3 := (1,3)(2,6)(4,9)(5,11)(7,16)(8,18)(10,22)(12,26)(13,28)(14,30)(15,32)(17,36)(19,39)(20,40)(21,31)(23,42)(24,34)(25,33)(27,45)(29,48)(35,50)(37,49)(38,44)(41,52)(43,54)(46,53)(47,51);
F := FreeGroup(4);
r0 := F.1;; r1 := F.2;; r2 := F.3;; r3 := F.4;;
G := F/[ r0^2, r2^2, r1^2, r3^2, (r3*r0)^2, (r0*r2)^2, (r1*r0)^3, ((r1*r2)^2*r0)^2, r1*r3*r1*r2*r0*r1*r3*r1*r0*r3*r2*r3, (r2*r3)^6, r1*r3*r0*r2*r1*r3*r2*r0*r1*r2*r3*r0*r2*r3 ];;
type 0: 3 elements
type 1: 27 elements
type 2: 18 elements
type 3: 18 elements