C2122121212121133132213231313231323131323223313231322331323133112111   >>    C212212121212113313221323131323132313132322331323132233132313311211   <<    C2122121212121133132213231313231323131323223313231322331323133112113   >>      C2122121212121133132213231313231323131323223313231322331323133112112   >>