C13132313123113313223313133313231133132333132311113313233313132322321   >>    C1313231312311331322331313331323113313233313231111331323331313232232   <<    C13132313123113313223313133313231133132333132311113313233313132322323   >>      C13132313123113313223313133313231133132333132311113313233313132322322   >>