C2122121212121133132213231313231313231323223313231322331323132311212321   >>    C212212121212113313221323131323131323132322331323132233132313231121232   <<    C2122121212121133132213231313231313231323223313231322331323132311212323   >>      C2122121212121133132213231313231313231323223313231322331323132311212322   >>