class="bi x0 y0 w1 h1"
class="bi x1 y1 w2 h2"
class="bi x2 y2 w3 h3"
class="bi x1 y3 w4 h1"
class="bi x3 y4 w5 h4"
class="bi x2 y5 w6 h5"
class="bi x1 y6 w7 h6"
class="bi x4 y7 w8 h3"
class="bi x5 y8 w9 h7"
class="bi x6 y9 wa h8"
class="bi x5 y5 wb h9"
class="bi x7 ya wc ha"