C13223313311212111133133313331333133313231323133211113313223311231   >>    C1322331331121211113313331333133313331323132313321111331322331123   <<    C13223313311212111133133313331333133313231323133211113313223311233   >>      C13223313311212111133133313331333133313231323133211113313223311232   >>