C22121233131323223313233313231133132333133313113313231322131121   >>    C2212123313132322331323331323113313233313331311331323132213112   <<    C22121233131323223313233313231133132333133313113313231322131123   >>      C22121233131323223313233313231133132333133313113313231322131122   >>