RO*WAN
RO*ANN
RO*AAN
RO*WNN
RO*WWN
RR*WAN
RW*ANN
RW*WAN
R*OWN
RO*NNN
RR*ANN
R*WNN
R*WWN
RO*OWN
RR*AAN
RR*OWN
RR*WNN
RR*WWN
RW*AAN
RW*NNN
*ROW
RR*NNN
R*NNN
R*OWA