Question 4 

$ head path.txt
SENEESWSESWWNWSSESWSSENESENNWNEEESWSSENESENNWNENNWSWWNENWNEESENEESWS
SENESENNWNEESENEESWSESWWNWSSSENEESWSESWWNWSWWNENNWSWNWSSESWSESWSSENE
SENNWNEESENEESWSESWWNWSSSENEESWSESWWNWSWWNENNWSWNWSSESWWNWSWWNENWNEE
SENNWNENNWSWNWSSESWWWNENNWSWNWSSESWSSENEESWSESWWNWSSESWSSENESENNWNEE
SENEESWSESWWNWSSSENEESWSESWWNWSWWNENNWSWNWSSESWSSENEESWSESWWNWSSESWS
SENESENNWNEEESWSSENESENNWNENNWSWWNENWNEESENESENEESWSESWWNWSSESWSSENE
SENNWNEEESWSSENESENNWNENNWSWWNENWNEESENNWNENNWSWNWSSESWWNWSWWNENWNEE
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