MOTHER என்ற குறியீடு JRQKBU எனில், PRINCIPAL என்ற வார்த்தையின் குறியீடு என்ன?

In MOTHER → JRQKBU the letters alternately move 3 back and 3 forward: M−3 = J, O+3 = R, T−3 = Q, H+3 = K, E−3 = B, R+3 = U. Applying the same to PRINCIPAL: P−3 = M, R+3 = U, I−3 = F, N+3 = Q, C−3 = Z, I+3 = L, P−3 = M, A+3 = D, L−3 = I, giving MUFQZLMDI.