#!/bin/bash

cat nevsor-test.txt | while read SOR
do
    EHA=$(echo $SOR | sed 's/^.*\([[:upper:]]\{7\}\).*$/\1/')
    PONTOK=$(echo $SOR | sed 's/[[:upper:]].*$//')
    ALLAS=$(($(echo $PONTOK | sed 's/+/+1/g' | sed 's/-/-1/g' | sed 's/0/+0/g' | tr -d :)))
    if [ $ALLAS -ge 0 ]
    then
	echo $EHA
    fi
done