C2122121212121133132213231313231323131323223313231322331323133311211321   >>    C212212121212113313221323131323132313132322331323132233132313331121132   <<    C2122121212121133132213231313231323131323223313231322331323133311211323   >>      C2122121212121133132213231313231323131323223313231322331323133311211322   >>