C2122121212121133132213231313231313231323223313231322331313233313231323133221   >>    C212212121212113313221323131323131323132322331323132233131323331323132313322   <<    C2122121212121133132213231313231313231323223313231322331313233313231323133223   >>      C2122121212121133132213231313231313231323223313231322331313233313231323133222   >>