C3123223313331322121111331333133313231333132212111133132331133112121   >>    C312322331333132212111133133313331323133313221211113313233113311212   <<    C3123223313331322121111331333133313231333132212111133132331133112123   >>      C3123223313331322121111331333133313231333132212111133132331133112122   >>