OJ Board

who can tell me why i should output 11 for this one:
76.5 53.3 76.5 43.3
-5.1 1.0 4.9 1.0
5.1 0.7 5.1 -9.3
7.3 14.61 7.3 4.61

i think it should be 6
76.5 53.3 76.5 43.3 get 0 points
-5.1 1.0 4.9 1.0 get 5 points
5.1 0.7 5.1 -9.3 get 1 point
7.3 14.61 7.3 4.61 get 0 points
so the answer should be 6!