Revision history of "(a,b,a) is a permutation of (a,a,b)" (Z12746)

Farak pasand: Antar dekhe khatir radio box me chinh lagao aur enter ke, nai to, niche ke button dabao.
Legend: (abhi) = abhi ke version se farka, (pahile waala) = pahile waala version se farka, M = chhota sampadan.