Protesters hold a giant Greek national flag during an anti-austerity and pro-government demonstration in front of the parliament in Athens February 15, 2015. Greece said on Sunday it was confident of reaching agreement in negotiations with its euro zone partners but reiterated it would not accept harsh austerity strings in any debt pact. A day before a euro zone finance ministers' meeting in Brussels to shore up withGreece's dwindling finances and help keep it in the euro zone, Prime Minister Alexis Tsipras told Germany's Stern magazine Athens needed time to implement its reform programme and shake off the mismanagement of the past. REUTERS/Alkis Konstantinidis (GREECE - Tags: POLITICS BUSINESS CIVIL UNREST TPX IMAGES OF THE DAY)