For any element in keysList with a value smaller than 40, print the corresponding value in itemsList, followed by a comma (no spaces). Ex: If the input is:
32 105 101 35 10 20 30 40
the output is:
10,40,
Ex: If the input is:
39 51 107 60 12 -36 72 54
the output is:
12,
Ex: If the input is:
30 49 70 50 37 68 50 15
the output is:
37,
Ex: If the input is:
61 12 41 59 22 48 -73 106
the output is:
48,