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