C11111211113313112113313331333133313331333132212111133133323132111   >>    C1111121111331311211331333133313331333133313221211113313332313211   <<    C11111211113313112113313331333133313331333132212111133133323132113   >>      C11111211113313112113313331333133313331333132212111133133323132112   >>