C31211133313113313132333132313311231323132322331323133311221123232211   >>    C3121113331311331313233313231331123132313232233132313331122112323221   <<    C31211133313113313132333132313311231323132322331323133311221123232213   >>      C31211133313113313132333132313311231323132322331323133311221123232212   >>