class="bi x1 y1 w2 h2"
class="bi x2 y2 w4 h4"
class="bi x3 y3 w6 h5"
class="bi x4 y4 w7 h6"
class="bi x5 y4 w8 h7"
class="bi x6 y5 w9 h8"
class="bi x5 y6 wa h9"
class="bi x4 y7 wb ha"
class="bi x7 y7 wb hb"
class="bi x8 y8 wc hc"
class="bi x9 y7 wd ha"
class="bi x2 y9 we he"
class="bi xa ya w8 hf"
class="bi xb yb w4 h8"
class="bi xc ya wf hf"
class="bi xd ya w8 hf"
class="bi xa ya w10 hf"
class="bi xa ya wf hf"
class="bi xb yc w4 h10"
class="bi xb ya wf hf"
class="bi xb y5 w4 h8"
class="bi xa yd w11 h11"
class="bi xa ya w8 h11"
class="bi xc ya w8 h12"