C13132313123113313223313133313231133132333132311113313232231111   >>    C1313231312311331322331313331323113313233313231111331323223111   <<    C13132313123113313223313133313231133132333132311113313232231113   >>      C13132313123113313223313133313231133132333132311113313232231112   >>