program xxx;
uses crt;
const n=4;
var a:array[1..n,1..n] of integer;
      i,j,k: integer;
      w:boolean;
BEGIN
clrscr;
randomize;
w:=false;
for i:=1 to n do
  begin
    for j:=1 to n do
      begin
        a[i,j]:=random(50)-10;
        write(a[i,j]:4);
      end;
    writeln;
  end;
for i:=1 to n do
   for j:=1 to n-1 do
     for k:=j+1 to n do
       if a[j,i]=a[k,i] then w:=true;
if w=true then
writeln('есть')
else
writeln('нету');
readln;
END.