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by RheingoldRiver 1249 days ago
A bit cleaner, since `.` is a direction change in place (although the input string doesn't look as nice):

.r..z...z..t..zh.t...m.zz.z.wzk..zzz...z..z.w..zg.gkg.g....r..g.g..dlbbe..be..be..be..be..be..be.d..b..d.d...d..cg..cg..cg...d..c..e.ebec..eb..e...e.b.e.b.e....bbbbb.b.c..e.c