p0:= PermList([4, 3, 2, 1]);
p1:= PermList([3, 1, 4, 2]);
p2:= PermList([1, 2, 3, 4]);
p3:= PermList([3, 1, 4, 2]);
p4:= PermList([1, 2, 3, 4]);
p5:= PermList([2, 1, 4, 3]);
H:=Group(p0,p1,p2,p3,p4,p5);