Chef and Jail

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King of Chefland is very crurcial and coward. Chef is one of the soldiers of the king. Chef is brave and very powerful soldier. This is the reason that king is affraid of Chef. So, he trapped Chef in prison. Chef is kept in a special jail with tight security. There are $M x N$($M$ rows and $N$ columns) rooms in the jail and walls the room are made of stone. It is not possible to break the walls.

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solution.cppC++17

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