In a certain code language, 'HALMST' is written as 'IZMLTS' and 'GEASTR' is written as 'HDBRUQ'. How will 'TRAILS' be written in that language?

UQBHMR

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 :

H → (+1  ) → I

A  → ( -1 ) → Z

L  → (+1  ) → M

M → ( -1 ) → L

S → (+1  ) → T

T → ( -1 ) → S

AND

G → (+1  ) → H

E → ( -1 ) → D

A → (+1  ) → B

S → ( -1 ) → R

T → (+1  ) → U

R → ( -1 ) → Q

SIMILARLY

T → (+1  ) → U

R → ( -1 ) → Q

A → (+1  ) → B

I → ( -1 ) → H

L → (+1  ) → M

S → ( -1 ) → R