In a certain code language, 'KING' is coded as '16181320', and 'HOP'…

1   2    3    4   5    6   7     8    9  10  11  12  13

 A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

**********************************************************

THE LOGIC FOLLOWED HERE IS :

K  → OPPOSITE → P → PLACE VALUE → 16

I  → OPPOSITE → R → PLACE VALUE → 18

N  → OPPOSITE → M → PLACE VALUE → 13

G → OPPOSITE → T → PLACE VALUE → 20

AND

H  → OPPOSITE → S → PLACE VALUE → 19

O → OPPOSITE → L → PLACE VALUE → 12

P  → OPPOSITE → K → PLACE VALUE → 11

SIMILARLY

S → OPPOSITE → H → PLACE VALUE → 8

T → OPPOSITE → G → PLACE VALUE → 7

A → OPPOSITE → Z → PLACE VALUE → 26