C13223313311212111133133313331333133313231323133211331333132313231211111233211   >>    C1322331331121211113313331333133313331323132313321133133313231323121111123321   <<    C13223313311212111133133313331333133313231323133211331333132313231211111233213   >>      C13223313311212111133133313331333133313231323133211331333132313231211111233212   >>