C3123223313331322121111331333133313231333132212113313331333211231221   >>    C312322331333132212111133133313331323133313221211331333133321123122   <<    C3123223313331322121111331333133313231333132212113313331333211231223   >>      C3123223313331322121111331333133313231333132212113313331333211231222   >>