C22121233131323223313233313231133132333133313113313231311212321   >>    C2212123313132322331323331323113313233313331311331323131121232   <<    C22121233131323223313233313231133132333133313113313231311212323   >>      C22121233131323223313233313231133132333133313113313231311212322   >>