C2122121212121133132213231313231323131323223313231322331323133313331322231221   >>    C212212121212113313221323131323132313132322331323132233132313331333132223122   <<    C2122121212121133132213231313231323131323223313231322331323133313331322231223   >>      C2122121212121133132213231313231323131323223313231322331323133313331322231222   >>