C312322331333132212111133133313331323133313331333133313331333131211111231212311   >>    C31232233133313221211113313331333132313331333133313331333133313121111123121231   <<    C312322331333132212111133133313331323133313331333133313331333131211111231212313   >>      C312322331333132212111133133313331323133313331333133313331333131211111231212312   >>