注意：题目中的样例输出错误，请参考【输出格式】部分，在 ! 后不需要输出矩阵的大小。
即，正确的样例输出应为：
? 1 1
0
? 1 2
00
? 1 1
1
? 1 2
01
? 1 2
11
? 2 2
00
11
? 2 2
11
00
!
11
00QOJ.ac
QOJ
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Time Limit:
6 s
Memory Limit:
512 MB
Total points:
100
Interactive
#4306. Guess Matrix
統計
この問題は以下のコンテストで使用されています：
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