C11111211113313112113313331333133313331333132212111133133313331333132331111121   >>    C1111121111331311211331333133313331333133313221211113313331333133313233111112   <<    C11111211113313112113313331333133313331333132212111133133313331333132331111123   >>      C11111211113313112113313331333133313331333132212111133133313331333132331111122   >>