(2, 3, 2, 'S')
(3, 4, 2, 'R')
(4, 5, 2, 'S')
(5, 6, 2, 'R')
(6, 7, 2, 'S')
(7, 8, 2, 'R')
(8, 9, 3, 'S')
(9, 10, 2, 'R')
(11, 10, 2, 'S')
(11, 75, 1, 'SV')
(11, 12, 1, 'R')
(75, 74, 2, 'S')
(75, 76, 1, 'R')
(73, 74, 2, 'R')
(73, 72, 2, 'S')
(71, 72, 2, 'R')
(71, 70, 2, 'S')
(76, 77, 2, 'S')
(12, 13, 2, 'S')
(9, 12, 1, 'D')
(8, 76, 1, 'D')
