t@En[o[̖îQPj
r0P
r1i{Pj^Q
r2^2i{PjiQ{Pj^U
r3^3^2i{Pj^2^SEEEƂD
@r0
@^2Qr1|r0
@^3Rr2|Rr1{r0
@^4Sr3|Ur2{Sr1|r0
@r0r0
@Qr1^2Qr3
@Sr1^3Rr5{r3
@Wr1^4Sr7{Sr5