C1111233133313231133133313231333133313113313113313331333212331333133313221231   >>    C111123313331323113313331323133313331311331311331333133321233133313331322123   <<    C1111233133313231133133313231333133313113313113313331333212331333133313221233   >>      C1111233133313231133133313231333133313113313113313331333212331333133313221232   >>