정답 개수:
10
틀린 개수:
90
실행 실패 개수:
0
7 push 508 empty front empty pop pop push 596
0 508 0 None -1
0 508 0 508 -1
9 push 282 size back empty front size size pop pop
1 282 0 282 1 1 None -1
1 282 0 282 1 1 282 -1
10 pop push 16 front empty push 404 back pop push 49 back push 200
-1 16 0 404 None 49
-1 16 0 404 16 49