class="bi x0 y0 w1 h1"

class="bi x0 y1 w2 h2"
class="bi x1 y2 w3 h3"
class="bi x0 y3 w1 h4"
class="bi x1 y4 w3 h5"
class="bi x0 y5 w4 h6"
class="bi x1 y6 w3 h7"
class="bi x2 y7 w5 h8"

class="bi x0 y8 w1 h9"
class="bi x1 y8 w3 ha"
class="bi x0 y9 w4 hb"
class="bi x1 y9 w3 hc"
class="bi x0 y5 w4 hd"
class="bi x1 ya w4 he"
class="bi x0 ya w4 he"
class="bi x1 yb w3 h6"
class="bi x0 y8 w4 ha"
class="bi x1 yc w3 hb"
class="bi x0 yd w4 hf"

class="bi x0 y0 w1 h10"
class="bi x1 yc w3 hb"
class="bi x0 ye w4 he"