Heat map (vertical): ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZUQTVUUUUUUUUUUUUUUUUTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQPPPPPPPPPPPPPQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTUUUUUUUUUUUUUUUUUVQRZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ