If CAFÉ is coded as 3165 and HIDE is coded as 8945, how will you encode HEAD?

By following certain logic 'THEIR' is written as . 'TRIHE' and ‘SOLDIER' is written 'SROLIED'.How is CUSTOM written in that logic?

(7.5 x 7.5 +37.5+ 2.5 x 2.5) is equal to: