p0:= PermList([2, 1, 3, 4, 5, 6, 7]);
p1:= PermList([1, 2, 3, 4, 5, 6, 7]);
p2:= PermList([1, 2, 3, 5, 4, 7, 6]);
p3:= PermList([4, 1, 2, 5, 3, 6, 7]);
p4:= PermList([1, 3, 2, 7, 4, 6, 5]);
p5:= PermList([3, 6, 2, 4, 1, 7, 5]);
H:=Group(p0,p1,p2,p3,p4,p5);