C2122121212121133132213231313231323131323223313231322331323222313221   >>    C212212121212113313221323131323132313132322331323132233132322231322   <<    C2122121212121133132213231313231323131323223313231322331323222313223   >>      C2122121212121133132213231313231323131323223313231322331323222313222   >>