C22121233131323223313233313231133132333133313113313231313332211   >>    C2212123313132322331323331323113313233313331311331323131333221   <<    C22121233131323223313233313231133132333133313113313231313332213   >>      C22121233131323223313233313231133132333133313113313231313332212   >>