Unable to dry run this testcase?
Try making a new request with small values of n_high, t_high, *_high, etc.
6 10 1 1 7 3 12 11 12 5 10 7 5
6 2 10 1 5 10 7 5 1 7 12 3 11 12 LR UU DD LR LR LR UU DD UU DD UU DD
2 6 5 7 1 10 11 12 10 1 7 5 12 3 ULRUUU DLRDDD LRLRLR LRLRLR