Activating encoder mode
4 200
0 1 1 1 
0 0 1 1 
0 0 0 1 
0 0 0 0 
? 4 1
>
? 3 2
>
? 3 4
>
? 2 4
>
! 3 2 4 1 
? 2 1
Grader gave feedback: Case #1: Wrong edge in answer, 1 to 3
Grader killed graded software