|ʯ|С·;#al w_back {bhz;ta;setdo {arrive_back}};#al w_go {ghz;e;ta;setdo {arrive}};#al multi_go {walk2 {w;nw;multi_next;walk2 {sw;multi_next;walk2 {n;multi_next;walk2 {s;w;multi_next;walk2 {e;s;multi_next;walk2 {n;e;multi_next;walk2 {e;multi_next;walk2 {e;multi_next;walk2 {s;multi_next;walk2 {n;#3 w;ne;se;multi_finish}}}}}}}}}}}