How to display the string

how to display the string in this format

Sample Input

acb

Sample Output

a2c-1b

Ascii value of ‘c’ - acii value of ‘a’ =2
Ascii value of ‘b’ - acii value of ‘c’=-1
So output is a2c-1b
If you take a character in integer variable, it will represent its ascii value.
Ascii value of a-z is 97 to 122
Ascii value of A-Z is 65 to 90

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