7yv1 6yv1to 5yv1t 4yv1 3yv1to
i8u1to h8u1t g8u1 f8u1to e8u1t
thu1t shu1 rhu1to qhu1t phu1
4qt1 3qt1to 2qt1t 1qt1 0qt1to
f0s1to e0s1t d0s1 c0s1to b0s1t