C312322331333132212111133133313331323133313221211113313112211232331   >>    C31232233133313221211113313331333132313331322121111331311221123233   <<    C312322331333132212111133133313331323133313221211113313112211232333   >>      C312322331333132212111133133313331323133313221211113313112211232332   >>