toggle long dirs / reverse dirs
From
Heart: 6d, 2n, 4w, d, w, enter hole, 2w, se
From
Heart: d, d, d, d, d, d, n, n, w, w, w, w, d, w, enter hole, w, w, se
To
Heart: nw, 2e, enter hole, e, u, 4e, 2s, 6u
To
Heart: nw, e, e, enter hole, e, u, e, e, e, e, s, s, u, u, u, u, u, u
