C22121232133313231322331322331313231313231323132313113313221311   >>    C2212123213331323132233132233131323131323132313231311331322131   <<    C22121232133313231322331322331313231313231323132313113313221313   >>      C22121232133313231322331322331313231313231323132313113313221312   >>