o5b1du p5b1 q5b1d r5b1du s5b1

dwc1 ewc1d fwc1du gwc1 hwc1d

2md1d 3md1du 4md1 5md1d 6md1du

rde1du sde1 tde1d ude1du vde1

g4e1 h4e1d i4e1du j4e1 k4e1d