Heat map (vertical): AAAAABDEEEEEEFFFEEDCAAAAAEEEEEFFMNNNNNNNNOOOOOOPPPPPPPPPPPPPPPPPIIJJKKKKKKKKKKKKKKKKLLLLLLLLLLLHHHHHHHHJKKJJJJJJJJJJJKKJJKKKIIIIIIIIIIIIIIIIJJJJKLLLLLLLMMKJKKJKKKKKKKKKKPPPPPPPPPPPOOOOPOPPOOONNNNNNNONNNNNNNNNNNNNNNNNNNNNONNOOOOOOOOOOOONNNLMMMMMMMMQQQQQQQQQPPPPPOOPPOOPPOOOOOOOOOPPPOPPPPPPQQQQQRRNNNNNNNOOOQOOPOOQLLMMNNNNNNMNLKJHGHHGHHHHHHHHHHHHIHIHHHHHHHHHHHHHFFEEEEDCCCCDEEEFHGIKJJJHIKCDDCCCCCCCCCCCCDDDDDCCDDDDDCNNCCCCCCCEFGIIHHHIIIIIIIIIIIIIHHIHIIIJIIHHHGGGGGGGGGECBBBBBBBBBBBB