first = "first words"
second = "second words"
third = first+second
print(third)

#create an empty string c
c=""
#read input strings and store them in a and b
read a b
#for loop to append a group of strings to the variable c.
for val in $a 'ipsum' $b 'sit amet' 10
do c+="$val "
done
#The result is a string that consists of all the elements concatenated into a single string
echo "$c"

#Read inputs a and b and store string variables in them.
read a b
#append b to the string a
a+=$b
#Output the resulting string
echo $a