helping member for his assignment

getting-sum-of-two-digit.sh

#!/bin/bash
clear
echo
# getting 1st argument
echo "Please enter an series of numbers. e.g: 1 2 4 7 11 15"
read firstParam
# sanitised1stParam="${firstParam// /}"

# getting 2nd argument
echo
echo "Next please enter a digit. e.g: 15 "
read secondParam
sanitised2ndParam="${secondParam// /}"

echo
sum=0
notFound=true

# calculate
array=( $firstParam )
for i in "${array[@]}"
do
  for j in "${array[@]}"
  do
    sum=$(($j+$i))
    if [ $sum == $sanitised2ndParam ]
    then
      echo "$j + $i = $sum (TRUE)"
      notFound=false
    fi
  done
done

if [ $notFound ]
then
  echo "FALSE"
  exit 0
else
  exit 1
fi