class="bi x0 y0 w1 h1"
class="bi x1 y1 w2 h2"
class="bi x1 y2 w3 h3"
class="bi x1 y3 w3 h4"
class="bi x1 y4 w3 h5"
class="bi x1 y4 w2 h5"
class="bi x1 y5 w4 h6"
class="bi x1 y6 w3 h7"
class="bi x1 y7 w5 h4"
class="bi x1 y1 w6 h2"
class="bi x1 y5 w7 h6"
class="bi x1 y8 w7 h5"
class="bi x1 y9 w8 h8"
class="bi x0 ya w9 h9"