C22121233131323223313233313231133132333133313113313231323211121   >>    C2212123313132322331323331323113313233313331311331323132321112   <<    C22121233131323223313233313231133132333133313113313231323211123   >>      C22121233131323223313233313231133132333133313113313231323211122   >>