C312312111133131212111133133313231333131121211113313113313232212111133132233221   >>    C31231211113313121211113313331323133313112121111331311331323221211113313223322   <<    C312312111133131212111133133313231333131121211113313113313232212111133132233223   >>      C312312111133131212111133133313231333131121211113313113313232212111133132233222   >>