C11111333133313232233133313331333133313231322321111331322131221   >>    C1111133313331323223313331333133313331323132232111133132213122   <<    C11111333133313232233133313331333133313231322321111331322131223   >>      C11111333133313232233133313331333133313231322321111331322131222   >>