Heat map (vertical): UUQXXXXXXXWVVTSTTSSSVVWVWWWWLLLLLLLLLLLMMMMMMMMMMMMMMMMMLLJJHGFFFEEEEEEEEEFFHHHIJJJJKKKLLMMMNNOOPPPOMMKKKKKKKKKKKKKLLLLLLLLLLMMMMMNNOOOPQQQQRRRRRRRRRRQQQQQQQQPPPPPPOOOOOOOOPPPQPPPPOOOOONNNNNNNMMMMLKKKKKKJJJJKKKKKLLLLLLKKKKJJJJJJZZZZZZZZZZZZZOXXXXX