C123211131133132233131323132313233313233313132313133313233232321   >>    C12321113113313223313132313231323331323331313231313331323323232   <<    C123211131133132233131323132313233313233313132313133313233232323   >>      C123211131133132233131323132313233313233313132313133313233232322   >>