const
m=4;
n=10;
var
a:array[1..m,1..n] of integer;
i,j:integer;
begin
for i:=1 to m do
begin
for j:=1 to n do
begin
a[i,j]:=random(40);
write(' ',a[i,j]:3);
end;
writeln();
end;
writeln('--------') ;
for i:=1 to m do
begin
for j:=1 to n do
if odd(j) then write(a[i,j]:4);
writeln;
end;
writeln('--------') ;
end.