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.