I need to, after pressing the button, the values are formed into a table inside the program.

Here is the form of the program. Everything is ready, except for reading the values of the array from the "In" field. I can not properly organize it. For example:
In= 1 2 9 4 6 5 4 2 3 2 8 7 9 8 7 6 An array should form inside the program:
a[0][0]=1, a[0][1]=2, a[0][3]=9, ... , a[3][2]=7, a[3][3]=6.
In=) into an array of numbers? And what exactly is causing you difficulty? Determining the number of rows and columns? Splitting a string into separate values? Convert a character to a number? Or something else? - Dmi7ry