process.stdin.resume();
process.stdin.setEncoding('utf8');
 
function encrypt(plain, cipher, text) {
	plain = plain + plain.toUpperCase();
	cipher = cipher + cipher.toUpperCase();
 
	var newText = '';
	for(var i=0; i<text.length; i++) {
		var c = text.charAt(i);
		var index = plain.indexOf(c);
		if(index >= 0 && index < cipher.length) {
			newText += cipher.charAt(index);
		} else {
			newText += c;
		}
	}
	return newText;
}
 
var plainAlphabet = "abcdefghijklmnopqrstuvwxyz";
var cipherAlphabet = "zyxwvutsrqponmlkjihgfedcba";
var text = "Some sensitive text that only humans must be able to read";
 
var encodedText = encrypt(plainAlphabet, cipherAlphabet, text);
process.stdout.write(encodedText);
 

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