C312312111111331312111133133313331333133322331323133313222332321   >>    C31231211111133131211113313331333133313332233132313331322233232   <<    C312312111111331312111133133313331333133322331323133313222332323   >>      C312312111111331312111133133313331333133322331323133313222332322   >>