Помогите,затрудняюсь с выполнением
1 when 2 and 3 because 4 and 5 until 6 but 7 when 8 and 9 because 10 so 11 but 12 and 13 and 14 so 2 until f 3 when h 4 until a 5 when c 6 because d 7 until e 8 when b