C11111211113313112113313331333133313331333132212111133131331233131   >>    C1111121111331311211331333133313331333133313221211113313133123313   <<    C11111211113313112113313331333133313331333132212111133131331233133   >>      C11111211113313112113313331333133313331333132212111133131331233132   >>