#!/usr/local/bin/zsh

INDEX=1
while [ $INDEX -lt 70000 ]
do
        PREFIXES=`grep "[[:space:]]$INDEX$" example|awk '{print $1}'`
        if [ $PREFIXES ]
        then
                a=`echo $PREFIXES|aggregate`
                echo $a|awk '{print $1, "\t'$INDEX'"}'
                let INDEX=$INDEX+1
        else 
                let INDEX=$INDEX+1
        fi
done