export vow="A@E3I1O0UY"
export lvow="aAe3i1o0uy"
export novow="BCDFGHJKLMNPQRSTVWXZ"
export lnovow="bcdfghjklmnpqrstvwxz"

export i=10
export pwd=""

# ___________________________
vowel ()
{
# set -x
# echo $1
pos=$(( $RANDOM % 10 + 1 ))

case $uorl in

0) # echo doe upcase
pwd=${pwd}`echo $vow|cut -c $pos`
;;
1) # echo doe lcase
pwd=${pwd}`echo $lvow|cut -c $pos`
;;
esac
}
# ___________________________
novowel ()
{
# echo $1
pos=$(( $RANDOM % 20 + 1 ))

case $uorl in

0) # echo doe upcase
pwd=${pwd}`echo $novow|cut -c $pos`
;;
1) # echo doe lcase
pwd=${pwd}`echo $lnovow|cut -c $pos`
;;
esac
}
# ___________________________
# ___________________________
# main body
#_____________________________
while [ $i -gt 0 ]
do
uorl=$(( $RANDOM % 2))
case $(( $i % 2 )) in

0) # echo doe vowel
	vowel
;;
1) # echo doe novowel
	novowel
;;
esac
i=$(( $i -1 ))
done
echo $pwd
