C22121232133313231322331322331313231313231323132313113313231322311   >>    C2212123213331323132233132233131323131323132313231311331323132231   <<    C22121232133313231322331322331313231313231323132313113313231322313   >>      C22121232133313231322331322331313231313231323132313113313231322312   >>