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822 B

alphamirror

Instructions

Write a program called alphamirror that takes a string as argument and displays this string after replacing each alphabetical character with the opposite alphabetical character.

The case of the letter stays the same, for example :

'a' becomes 'z', 'Z' becomes 'A' 'd' becomes 'w', 'M' becomes 'N'

The final result will be followed by a newline('\n').

If the number of arguments is not 1, the program displays only a newline('\n').

Usage

student@ubuntu:~/student/alphamirror$ go build
student@ubuntu:~/student/alphamirror$ ./alphamirror "abc"
zyx
student@ubuntu:~/student/alphamirror$ ./alphamirror "My horse is Amazing." | cat -e
Nb slihv rh Znzarmt.$
student@ubuntu:~/student/alphamirror$ ./alphamirror | cat -e
$
student@ubuntu:~/student/alphamirror$