program pascal_matrica1;
var i , j ,n1 , n2 : integer;
begin
n1 := 5;
n2 := 8 ;
for i := 1 to n1 do
begin
for j := 1 to n2 do
begin
if ( i = 1 ) or ( i = n1 ) then
write( 'x' )
else
begin
if ( j = 1 ) or ( j = n2 ) then
write( 'x' )
else
write( 'o' );
end;
end;
writeln();
end;
readln();
end.