a67t 957td8 857td 757t 657td8
lf7td8 kf7td jf7t if7td8 hf7td
wo6td vo6t uo6td8 to6td so6t
7x5t 6x5td8 5x5td 4x5t 3x5td8
i74td8 h74td g74t f74td8 e74td