C112233313331323223313331311331323133313331313231333131323131131   >>    C11223331333132322331333131133132313331333131323133313132313113   <<    C112233313331323223313331311331323133313331313231333131323131133   >>      C112233313331323223313331311331323133313331313231333131323131132   >>