C22121233131323223313233313231133132333133313113313233231323121   >>    C2212123313132322331323331323113313233313331311331323323132312   <<    C22121233131323223313233313231133132333133313113313233231323123   >>      C22121233131323223313233313231133132333133313113313233231323122   >>