C2122121212121133132213231313231313231323223313231322331323131331123121   >>    C212212121212113313221323131323131323132322331323132233132313133112312   <<    C2122121212121133132213231313231313231323223313231322331323131331123123   >>      C2122121212121133132213231313231313231323223313231322331323131331123122   >>