exec m4 -Dexec=dnl "$0"
undefine(`exec')dnl
define(`s',include(/dev/stdin))dnl
define(`p1',ifelse(index(s,`oda'),-1,`yukiko',`oda'))dnl
define(`p2',ifelse(index(p1,`oda'),-1,`oda',`yukiko'))dnl
ifelse(eval(((len(s)-len(translit(s,`bw')))&1)==0),1,p1,p2)