Объясните связь между дискретностью сигнала и алфавитным способом записи информации?

3*3: (3*3)=1

(3*3-3): 3=2

3*3-(3+3)=3

(3*3+3): 3=4

(3+3): 3+3=5

(3+3-3)+3=6

(3: 3+3)+3=7

3*3-(3: 3)=8

3*3-(3-3)=9

3*3+3: 3=10

program p; uses crt,graph; var d,m: integer; beginclrscr; initgraph(d,m,''); setcolor(green) ; line(200,420,300,420); line(300,420,250,330); line(250,330,200,420); line(200,330,300,330); line(300,330,250,240); line(250,240,200,330); line(200,240,300,240); line(300,240,250,140); line(250,140,200,240); readkey; end.

program m; uses crt; var k,s: real; i: integer; beginclrscr; for i: =1 to 10 dobegink: =i/(i+1); s: =s+k; end; writeln(s: 2: 2); readkey; end.

var a,b,c: integer;

begin

clrscr;

readln(a,b,c);

          if a = b then writeln(c);

          if b = c then writeln(a);

          if a = c then writeln(b);

readkey;

end.