C2122121212121133132213231313231313231323223313231322331323133313221132311   >>    C212212121212113313221323131323131323132322331323132233132313331322113231   <<    C2122121212121133132213231313231313231323223313231322331323133313221132313   >>      C2122121212121133132213231313231313231323223313231322331323133313221132312   >>