4 -> 5 -> 6.5 – 8– -> 6.5– -> 5, -> 6.5, -> 5, -> 4–
6.5 -> 8 -> 9– – 11 -> 10.5– -> 8 -> 6.5– -> 7, -> 6.5, -> 5–
4 -> 5 -> 6.5 – 8 -> 6.5, -> 8, -> 6.5, -> 5 -> 4–
6.5 -> 8 -> 9– – 8 -> 6.5 –  6.5 -> 5– -> 4, -> 5, -> 4—