C22121232133313231322331322331313231313231323132313113313231323211211   >>    C2212123213331323132233132233131323131323132313231311331323132321121   <<    C22121232133313231322331322331313231313231323132313113313231323211213   >>      C22121232133313231322331322331313231313231323132313113313231323211212   >>