19ei 29ei6 39ei6b 49ei 59ei6
q0fi6 r0fi6b s0fi t0fi6 u0fi6b
frgi6b grgi hrgi6 irgi6b jrgi
4hhi 5hhi6 6hhi6b 7hhi 8hhi6
t8hi6 u8hi6b v8hi w8hi6 x8hi6b