C312322331333132212111133133313331333133312121111331121133133313231122313112121   >>    C31232233133313221211113313331333133313331212111133112113313331323112231311212   <<    C312322331333132212111133133313331333133312121111331121133133313231122313112123   >>      C312322331333132212111133133313331333133312121111331121133133313231122313112122   >>