C312322331333132212111133133313331323133313221211111211331313221231   >>    C31232233133313221211113313331333132313331322121111121133131322123   <<    C312322331333132212111133133313331323133313221211111211331313221233   >>      C312322331333132212111133133313331323133313221211111211331313221232   >>