S1 = [5, 9, 11, 10, 2, 5, 5]
counter = [0] * 14
for i in S1:
counter[i] = counter[i] + 1
S1.sort(key=lambda x: (-counter[x], -x))
print(S1)
UzEgPSBbNSwgOSwgMTEsIDEwLCAyLCA1LCA1XQpjb3VudGVyID0gWzBdICogMTQKCmZvciBpIGluIFMxOgogICAgY291bnRlcltpXSA9IGNvdW50ZXJbaV0gKyAxCgpTMS5zb3J0KGtleT1sYW1iZGEgeDogKC1jb3VudGVyW3hdLCAteCkpCgpwcmludChTMSk=