Uses Crt;
Var x,b,z,l,c,r,d,i,u,um:Longint;
    k:byte; s:string;
Begin
 ClrScr;
{------------------------------------------------------}
 TextColor(white);
 GotoXY(15,1); WriteLn('Izvlechenia korna kvadratnogo');
 WriteLn('Vvedite chislo');
 WriteLn('      ÚÄÄÄÄÄÄÄÄ');
 Write('     \³'); ReadLn(x);
 GotoXY(15,4);Write('=');
{------------------------------------------------------}
 for k:=2 to 5 do
  begin
   GotoXY(6,3*k);Write('ÄÄÄÄÄÄÄÄÄÄÄ');
  end;
{------------------------------------------------------}
 str(x,s);
 l:=round(length(s)/2)-1;
 b:=x; z:=1; r:=0;
{------------------------------------------------------}
 while b>=100 do
  begin
   b:=b div 100;
   z:=z*100
  end;
{------------------------------------------------------}
 c:=9;
 while c*c>b do c:=c-1;
 r:=r*10+c;
 d:=c*c;
 x:=x-d*z;   {x=3654321}
 ReadKey; GotoXY(8,5); Write(d);
 ReadKey; GotoXY(16,4); Write(c);
{------------------------------------------------------}
 l:=l-1;         {l=2}
 z:=z div 100;   {z=10000}
 b:=x;            {b=3654321}
 for i:=1 to l do b:=b div 100;    {b=365}
 ReadKey; GotoXY(8,7); Write(b);
 c:=9;
 while (20*r+c)*c>b do c:=c-1;      {c=7}
 r:=r*10+c;                        {r=27}
 u:=r*2-c;                          {u=47}
 um:=u*c;                          {um=47*7=329}
 ReadKey; GotoXY(3,7); Write(u);
 ReadKey; GotoXY(4,8); Write(c);
 ReadKey; GotoXY(8,8); Write(um);
 ReadKey; GotoXY(17,4); Write(c);
{------------------------------------------------------}
 l:=l-1;                          {l=1}
 b:=x;                           {b=3654321}
 b:=b-um*z;                      {b=364321}
 z:=z div 100;                   {z=100}
 for i:=1 to l do b:=b div 100;
 ReadKey; GotoXY(9,10); Write(b); {b=3643}
 c:=9;
 while (20*r+c)*c>b do c:=c-1;
 r:=r*10+c;
 u:=r*2-c;
 um:=u*c;
 ReadKey; GotoXY(3,10); Write(u);
 ReadKey; GotoXY(5,11); Write(c);
 ReadKey; GotoXY(9,11); Write(um);  {3276}
 ReadKey; GotoXY(18,4); Write(c);
{------------------------------------------------------}
 l:=l-1;            {l=0}
 b:=b*z+x mod 100;
 b:=b-um*z;
 z:= z div 100;
 for i:=1 to l do b:=b div 100;
 ReadKey; GotoXY(10,13); Write(b);
 c:=9;
 while (20*r+c)*c>b do c:=c-1;
 r:=r*10+c;
 u:=r*2-c;
 um:=u*c;
 ReadKey; GotoXY(3,13); Write(u);
 ReadKey; GotoXY(6,14); Write(c);
 ReadKey; GotoXY(10,14); Write(um);
 ReadKey; GotoXY(19,4); Write(c);
{------------------------------------------------------}
 b:=b-um;
 ReadKey; GotoXY(11,16); Write(b);
 ReadLn;
End.