For example ang message or plaintext natin is
CHOCOLATE AND ICE CREAM
divide it into 3 letter chunks.
Magiging ganito na sya.
CHO COL ATE AND ICE CRE AMX
Kulang ng isang letter so maglalagay tayo ng clone letter at yun yung X.
Tapos reverse the letters in each chunk kaya magiging ganito na.
OHC LOC ETA DNA ECI ERC XMA
Yan na yung ciphered text natin.
Sa pagdedecrypt same process lang din.
