In a certain code language, 'EARTH' is written as '5118208' and 'BOOK…

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

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THE LOGIC FOLLOWED HERE IS

POSITIONAL VALUE OF ENGLISH ALPHABET IS GIVEN IN CODED NUMBER

HERE

EARTH' is written as '5118208'

E = 5

A = 1

R = 18

T = 20

H = 8

T = 20

AND

BOOK' is written as '2151511'

B = 2

O = 15

O = 15

K = 11

SIMILARLY

C = 3

O = 15

U = 21

N = 14

T = 20

R = 18

Y = 25

COUNTRY = 31521142011825