Recursion Problems

Printing a string forwards and backwards & printing an integer vertically You write a program that completes two tasks: (1) prints a string forwards first and then print the same string backwards. For example if input is cs, output is cssc. (2) prints an integer (positive/negative) vertically. For example if input is 12354, output is: 1 2 3 5 4 Input is -23145, output is: 2 3 1 4 5