C312322331333132212111133133313331312111133132313331333131123313133232112312121   >>    C31232233133313221211113313331333131211113313231333133313112331313323211231212   <<    C312322331333132212111133133313331312111133132313331333131123313133232112312123   >>      C312322331333132212111133133313331312111133132313331333131123313133232112312122   >>