o1p45q p1p4 q1p45 r1p45q s1p4

dsq4 esq45 fsq45q gsq4 hsq45

2ir45 3ir45q 4ir4 5ir45 6ir45q

r9r45q s9r4 t9r45 u9r45q v9r4

g0s4 h0s45 i0s45q j0s4 k0s45