#!/bin/bash
#Read multiple lines from input.


#!/bin/bash
#Process command line options

while getopts "r" opt ;do

        if [[ $opt == 'r' ]] ;then

            flagTrue=1
        else
            flagTrue=0
        fi
done

shift

while read line ; do

    if [[ $flagTrue == 1 ]] ; then

            while read one tail ; do
                echo "$one"
                count=0

                for a in $tail ; do

                    linesum=$(($linesum + $a))
                    count=$(($count + 1))

                done

            echo $linesum $count $one | awk '{ print $3 " " int(($1/$2)+0.5) }'

            linesum=0
            average=0

            done

    else

        while read one tail ; do
            count=0


            for a in $tail ; do

                linesum=$(($linesum + $a))
                count=$(($count + 1))
            done

            average=$(($linesum / $count))

            echo "$one $average"

            linesum=0

            average=0
        done
    fi

done < "${1:-/dev/stdin}"



# while getopts "r" opt ;do

#   if [ $opt == 'r' ] ; then


#   else


# fi
# done