2.8-later How to print the first and last digit of an integer?

R4.18 on page 165.

1. How about printing out all digits of an integer in reverse order?

2. How about printing out all digits at even positions? For instance given 823456, you print out 6, 4, 2 but not 8 because 8 is the 5th digit. You see the right most digit is 0th.

3. How about printing out left half of the digits? If the total number of digits is odd, you print out the smaller half.

Challenge: 1) ACSL AscendingJr