C121122333132233131232313113313222313231323133313232213211231321   >>    C12112233313223313123231311331322231323132313331323221321123132   <<    C121122333132233131232313113313222313231323133313232213211231323   >>      C121122333132233131232313113313222313231323133313232213211231322   >>