C222123232321333131133133313331323133313231323211113112213233211   >>    C22212323232133313113313331333132313331323132321111311221323321   <<    C222123232321333131133133313331323133313231323211113112213233213   >>      C222123232321333131133133313331323133313231323211113112213233212   >>