program z8_40;
uses crt;
const n=3;m=4;
var a:array[1..n,1..m] of integer;
i,j:integer;
BEGIN
clrscr;
randomize;
for i:=1 to n do begin
for j:=1 to m do begin
a[i,j]:=random(50)-2;
write(a[i,j]:7); end;
writeln; end;
for i:=1 to n do begin
j:=2;
write('in ',i,'line: ');
while (j<=m) and (a[i,j-1]=a[i,j]) do
inc(j);
if j<=m then writeln(j-1,' and',j)
else writeln('no'); end;
END.