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hamed SAYS

In each cell of n×m table a natural number is written which shows the number of cells located left or below that cell.

It's better to write :

In each cell of n×m table a natural number is written which shows the number of cells located left AND below that cell.

M.Khooryani SAYS

the cell can't locate left AND below another cell!

colud you be at more than one place in same time?

Ln (x) dx SAYS

Yes. Cell cannot. But cells can :)