Q: This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
Passage: He was General Secretary (later Chairman of the Presidium) of the League of Communists of Yugoslavia (193980), and went on to lead the World War II Yugoslav guerrilla movement, the Partisans (194145). After the war, he was the Prime Minister (194463), President (later President for Life) (195380) of the Socialist Federal Republic of Yugoslavia (SFRY). From 1943 to his death in 1980, he held the rank of Marshal of Yugoslavia, serving as the supreme commander of the Yugoslav military, the Yugoslav People's Army (JNA). With a highly favourable reputation abroad in both Cold War blocs, Josip Broz Tito received some 98 foreign decorations, including the Legion of Honour and the Order of the Bath. Question: What position in Yugoslavia's government did Tito hold from 1944-63?
A:
Prime Minister