In this code, two lists firstList and secondList are defined with elements [1, 2, 3, 4, 5] and [6, 7, 8, 9, 10] respectively.
A third list joinedList is created by concatenating firstList and secondList using the + operator.
The + operator performs the concatenation of the two lists by combining all the elements of the first list followed by all the elements of the second list, resulting in a new list joinedList with elements [1, 2, 3, 4, 5, 6, 7, 8, 9, 10].
Finally, the joinedList is printed using the print() function.
firstList = [1, 2, 3, 4, 5]
secondList = [6, 7, 8, 9, 10]
joinedList = firstList + secondList
print(joinedList)
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]