C222123232321333131133133313331323133313231323211113112212322211   >>    C22212323232133313113313331333132313331323132321111311221232221   <<    C222123232321333131133133313331323133313231323211113112212322213   >>      C222123232321333131133133313331323133313231323211113112212322212   >>