Encode function should take a string or a char array, and return another string

 

or char array by shifting the letters in the alphabeth by the shiftAmount. For

example, given the string $$abcd$$ the function should return $$bcde.$.$ You can

achieve this by converting chars to integers, using ASCII representations to shift

($($eg.$.$ a=97,$=97,$ b=98),$=98),$ and convert back to chars.