Unable to dry run this testcase?
Try making a new request with small values of n_high, t_high, *_high, etc.
4 13 Add 3 4 Color 1 3 1 Query 1 Add 4 -3 Color 1 2 4 Add 1 -2 Color 1 4 2 Add 2 0 Add 1 0 Add 1 4 Color 2 3 3 Query 1 Add 2 -1
0 0
0 -2