C2122121212121133132213231313231313231323223313231322331323133313331322121221   >>    C212212121212113313221323131323131323132322331323132233132313331333132212122   <<    C2122121212121133132213231313231313231323223313231322331323133313331322121223   >>      C2122121212121133132213231313231313231323223313231322331323133313331322121222   >>