tail -n 1 | {
        A=`sed -e 's/\(.*\) \(.*\)/\1\2/g'`;
        for i in `seq 1 100`
        do
                if [[ $(($i*$i)) = $A ]]; then
                        echo 'Yes'
                        break
                fi
                if [[ $i = 100 ]]; then
                        echo 'No'
                fi
        done
}