nf9rw mf9r lf9rwp kf9rw jf9r
yo8r xo8rwp wo8rw vo8r uo8rwp
9x7rwp 8x7rw 7x7r 6x7rwp 5x7rw
k76rw j76r i76rwp h76rw g76r
vg6r ug6rwp tg6rw sg6r rg6rwp