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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Límite de tiempo: 6 s
Límite de memoria: 512 MB
Puntuación total: 100
Interactivo
#4306. Guess Matrix
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