class="bi x0 y0 w0 h1"
class="bi x1 y1 w1 h2"

class="bi x2 y2 w2 h3"
class="bi x3 y3 w3 h4"
class="bi x4 y4 w4 h5"
class="bi x3 y5 w5 h6"
class="bi x5 y6 w6 h7"

class="bi x1 y7 w7 h8"
class="bi x6 y8 w4 h9"
class="bi x4 y9 w3 ha"
class="bi x7 y9 w8 ha"
class="bi x4 y9 w9 ha"
class="bi x8 y8 wa hb"
class="bi x4 ya wb hc"
class="bi x8 y8 wa hb"
class="bi x9 yb wc hd"
class="bi xa y8 wd hb"
class="bi x4 yc wa he"

class="bi x1 yd w7 hf"
class="bi x1 ye we h10"
class="bi x1 yf w1 h11"
class="bi xb ye w7 h10"