C111123313121111121111331333133313331333131113211331323133313221311211   >>    C11112331312111112111133133313331333133313111321133132313331322131121   <<    C111123313121111121111331333133313331333131113211331323133313221311213   >>      C111123313121111121111331333133313331333131113211331323133313221311212   >>