C2122121212121133132213231313231313231323223313231322331311212331   >>    C212212121212113313221323131323131323132322331323132233131121233   <<    C2122121212121133132213231313231313231323223313231322331311212333   >>      C2122121212121133132213231313231313231323223313231322331311212332   >>