Instructions: In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.
Input: Question: How many days did Operation Barbarossa last? Passage 1:Schandermani lived in Tehran, the capital of Iran. In 1953 US Central Intelligence Agency overthrew the Iranian government of Prime Minister Mohammed Mossadegh and restored Shah Mohammed Reza Pahlavi. Schandermani's father was a leftist politician. After CIA coup his father was arrested and sentenced to death. But he escaped from the detention centre and later on moved to the USSR where the Soviet officials granted him political asylum. In the early 60's Schandermani immigrated with his mother to Russia, where family was reunited. In 1961 he went to school in Moscow. Two years later he continued his school education in a special school for foreigners Interdom located in the Russian city Ivanovo. In 1971 he graduated from this school and moved to Dushanbe capitol of the former Soviet Republic of Tajikistan. In 1979 after the fall of the Shah's regime Schandermani went via West-Berlin back to Iran. After his arrival at the Tehran's airport Mehrabad he was arrested and jailed. Four days later he was expelled from the country to the German city Berlin, where he applied for political asylum. In 1992 he was naturalized and became citizen of the Federal Republic of Germany.
 Passage 2:A former amateur champion at Nihon University, he turned professional at the age of 23, joining Kasugano stable in March 1981. He reached the top makuuchi division in September 1983, and in 1984 he earned his first special prize for Fighting Spirit, and defeated Takanosato in his first ever bout against a yokozuna to earn his first of his three kinboshi. He spent most of 1985 in the second jūryō division, but in 1986 made the san'yaku ranks at komusubi. In November 1987 he scored 10–5 from the maegashira 6 ranking, defeating two ōzeki and winning the Technique Prize. This earned him promotion to his highest rank of sekiwake for the following tournament in January 1988. However, by the end of the year he was in jūryō again due to injury problems. He won the jūryō yūshō on two occasions in 1989 and won promotion back to the top division. After missing the September 1990 tournament he fell to jūryō again and made only one more appearance in makuuchi before retiring in May 1992 at the age of 34.
 Passage 3:Born in Cologne-Lindenthal, Reinert volunteered for military service in the National Socialist Luftwaffe in 1938. Following flight training, he was posted to Jagdgeschwader 77 (JG 77—77th Fighter Wing). He fought in Operation Barbarossa, the German invasion of the Soviet Union, and claimed his first aerial victory on 8 August 1941. He received the Knight's Cross of the Iron Cross following his 53rd aerial victory. Accumulating further victories, he surpassed the century mark in October 1942 for which he was awarded the Knight's Cross of the Iron Cross with Oak Leaves. In November 1942, his unit was transferred to the Mediterranean theatre in support of the Afrika Korps. There, Reinert claimed 51 victories against the Western Allies. In August 1943, he was appointed Staffelkapitän (squadron leader) of 1. Staffel (1st squadron) of JG 77, and in February 1944 the 8. Staffel of Jagdgeschwader 27 (JG 27—27th Fighter Wing) based in France. Reinert was then appointed Gruppenkommandeur (group commander) of IV. Gruppe (4th group) of JG 27 and, credited with 174 aerial victories, received the Knight's Cross of the Iron Cross with Oak Leaves and Swords on 30 January 1945. He then received conversion training to the then new Messerschmitt Me 262 jet fighter and was posted to Jagdgeschwader 7 (JG 7—7th Fighter Wing), an all-jet fighter wing.

Output:
3