C312312111133131121333133313113313331333133313331323133313222331   >>    C31231211113313112133313331311331333133313331333132313331322233   <<    C312312111133131121333133313113313331333133313331323133313222333   >>      C312312111133131121333133313113313331333133313331323133313222332   >>