C3123223313331322121111331333133313231333132212111113331311213231221   >>    C312322331333132212111133133313331323133313221211111333131121323122   <<    C3123223313331322121111331333133313231333132212111113331311213231223   >>      C3123223313331322121111331333133313231333132212111113331311213231222   >>