C222123232321333131133133313331323133313231323211113113222312121   >>    C22212323232133313113313331333132313331323132321111311322231212   <<    C222123232321333131133133313331323133313231323211113113222312123   >>      C222123232321333131133133313331323133313231323211113113222312122   >>