Coding Decoding - JAPAN to KCSES

The coding pattern is $+1, +2, +3, +4, +5$:

• J $(+1) \rightarrow$ K
• A $(+2) \rightarrow$ C
• P $(+3) \rightarrow$ S
• A $(+4) \rightarrow$ E
• N $(+5) \rightarrow$ S

Similarly for CASTLE ($+1, +2, +3, +4, +5, +6$):

• C $(+1) \rightarrow$ D
• A $(+2) \rightarrow$ C
• S $(+3) \rightarrow$ V
• T $(+4) \rightarrow$ X
• L $(+5) \rightarrow$ Q
• E $(+6) \rightarrow$ K

So CASTLE is coded as DCVXQK.