The function reverses the input string and increments each character in the reversed string to the next character in the alphabet.

[CODE]:
```python
def f(x):
    # Reverse the string
    reversed_string = x[::-1]
    output = ""
    
    # Increment each character in reversed_string
    for c in reversed_string:
        if c.isalpha():
            output += chr(ord(c) + 1)
        else:
            output += c
    
    return output
```