ENCRYPTION 1

CAESER CIPHER: ALPHABETS IS SHIFTED BY 3 LETTERS ( OR ANY NUMBER ) AND WRITTEN BELOW THE ORIGINAL ALPHABETS. PLAIN TEXT IS CONVERTED INTO CIPHER TEXT BY PICKING UP CORRESPONDING LETTERS FROM SHIFTED ALPHABETS.

DECRYPTION: CIPHER TEXT IS DECIPHERED USING FREQUENCY OF LETTERS IN STANDARD ENGLISH. IF L's FREQUENCY IN CIPHER TEXT MATCHES E's FREQUENCY IN STANDARD ENGLISH, THAN L CAN BE REPLACED BY E.