C22121233131323223313233313231133132333133313113313113313221111   >>    C2212123313132322331323331323113313233313331311331311331322111   <<    C22121233131323223313233313231133132333133313113313113313221113   >>      C22121233131323223313233313231133132333133313113313113313221112   >>