#### SYSTEM-82

Proposed by Daniel Sitaru-Romania SYSTEM-82 Solution by Mohammad Rostami-Kabul-Afghanistan

#### SYSTEM-81

Proposed by Orlando Irahola Ortega-Tarija-Bolivia SYSTEM-81 Solution by Rahim Shahbazov-Baku-Azerbaijan

#### SYSTEM-80

Proposed by Daniel Sitaru-Romania SYSTEM-80 Solution 1 by Alex Szoros-Romania, Solution 2 by Ravi Prakash-New Delhi-India, Solution 3 by Abdul…

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#### SYSTEM-79

Proposed by Daniel Sitaru-Romania SYSTEM-79 Solution by Rahim Shahbazov-Baku-Azerbaijan

#### SYSTEM-78

Proposed by Jalil Hajimir-Toronto-Canada SYSTEM-78 Solution by Santos Martins Junior-Brusels-Belgium

#### SYSTEM-77

Proposed by Daniel Sitaru-Romania SYSTEM-77 Solution by George Florin Serban-Romania

#### SYSTEM-76

Proposed by Daniel Sitaru-Romania SYSTEM-76 Solution by Abdul Hannan-Tezpur-India

#### SYSTEM-75

Proposed by Daniel Sitaru-Romania SYSTEM-75 Solution by George Florin Serban-Romania

#### SYSTEM-74

Proposed by Daniel Sitaru-Romania SYSTEM-74 Solution 1 by Santos Martins Junior-Brusels-Belgium, Solution 2 by Abner Chinga Bazo-Peru, Solution 3 by…

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#### SYSTEM-73

Proposed by Daniel Sitaru-Romania SYSTEM-73 Solution 1 by Rahim Shahbazov-Baku-Azerbaijan, Solution 2 by Florica Anastase-Romania