C11111211113313112113313331333133313231311331333133312111112332233131   >>    C1111121111331311211331333133313331323131133133313331211111233223313   <<    C11111211113313112113313331333133313231311331333133312111112332233133   >>      C11111211113313112113313331333133313231311331333133312111112332233132   >>