21 countries challenge solution

1 Brunei, 2 Iran, 3 Iraq, 4 Israel, 5 Laos, 6 Latvia, 7 Lebanon, 8 Malaysia, 9 Mali, 10 Malta, 11 Oman, 12 Palau, 13 Peru, 14 Romania, 15 Russia, 16 Samoa, 17 Somalia, 18 Syria, 19 UK, 20 USA, 21 Vietnam

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