Heat map (vertical): AAAAAAAAAAAABBCCCDDDDEFFFGGGGGFFFFFFFFFFFFFFFFFFFFFGGGGGGGGGGGGGGGGGGGGGGGGHHHHHIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIJLLLLLLLKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKLLLLLLLLLKKKKKKKKKKKKJKJJJJJJJJJJJJJJJJJJJJJJJJJJJJKKKKKKJHGGGGGGGGGGGGGGGGGGGGGFFFFFFFFFFFFFFFFFFGGGGGGGFFEEDDDCCCBBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFFGEDDDDDDDDDDDDDDEFFEEEEEDDDDDDDDDEEGGGBAAAAAAAAAAAAAAAAAAAAEEEDCCCCCCCCCCCCCDDDDCCCCCCCCCCCCCCCDEEEAAAAAAAAAAAAA