class="bi x0 y0 w1 h1"
class="bi x0 y1 w1 h2"
class="bi x0 y2 w2 h3"
class="bi x0 y3 w3 h4"
class="bi x0 y0 w4 h5"
class="bi x0 y4 w1 h3"
class="bi x0 y5 w1 h6"
class="bi x0 y6 w4 h7"
class="bi x0 y6 w1 h8"
class="bi x0 y4 w5 h9"
class="bi x0 y7 w6 ha"
class="bi x0 y4 w7 hb"
class="bi x0 y8 w8 hc"
class="bi x0 y9 w9 h6"