Random Number generator between 0 & 100 and breaks if greater than 50

randomNumber.sh

#Random Number generator between 0 & 100 and breaks if greater than 50 
let a=1
while [ $a -le 100 ] 
do
        k=${RANDOM:0:2}
#for generating random number between 0 & 99
        echo $k
        if [ $k -gt 50 ]
        then
          echo "Bye - $k is greater than 50"
          break
        fi
          (( a++ ))
done