class="bi x0 y0 w1 h1"
class="bi x1 y0 w2 h2"
class="bi x2 y1 w3 h3"
class="bi x3 y2 w4 h4"
class="bi x0 y3 w5 h5"
class="bi x1 y4 w5 h6"
class="bi x4 y5 w6 h7"
class="bi x5 y6 w7 h8"
class="bi x6 y7 w8 h9"
class="bi x1 y8 w9 h6"
class="bi x1 y3 w5 ha"