You will be given a definition of a task first, then some input of the task.
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.

Question: What country hosted the 2016 Summer Olympics? Passage 1:Before the 2012 Republican primary, Barron helped organize the "Draft Cheney 2012" movement, which was to convince the former vice president Cheney to seek the Republican presidential nomination in 2012. Early in the 2012 Republican primary process, Barron endorsed Herman Cain for the 2012 U.S. presidential election. After Cain dropped out, Barron endorsed Republican and later Libertarian Party presidential candidate Gary Johnson for the 2012 U.S. presidential election. He was a delegate to the 2012 Libertarian National Convention. In the 2012 Republican primary in the District of Columbia, Barron voted for Ron Paul. In October 2012, however, he announced he had decided to support and vote for Mitt Romney for President, even while continuing to serve as a D.C. elector for Johnson.
 Passage 2:From there it flows west through the Navajo Nation, turning northwest near Shiprock and its namesake monolith, crossing very briefly back into southwest Colorado (within half a mile (0.8 km) of the Four Corners quadripoint) before entering southeastern Utah. West of Bluff, Utah the river slices through the Comb Ridge and enters a series of rugged winding canyons, often over in depth. The lower of the San Juan River, in a remote portion of the Glen Canyon National Recreation Area, are flooded by Lake Powell, which is formed by Glen Canyon Dam on the Colorado River. The San Juan joins the Colorado in San Juan County, Utah at a point about to the north of Navajo Mountain and northeast of Page, Arizona.
 Passage 3:In 2015, Meziane was part of the Algeria under-23 national team at the 2015 U-23 Africa Cup of Nations in Senegal. where he participated in all matches and lead the National team to the Football at the 2016 Summer Olympics for the first time in 36 years, Meziane was named in the squad for the 2016 Summer Olympics. In the first match against Honduras, he took part as a substitute for Mohamed Benkablia, and in the following matches against Argentina he participated as a substitute again, and this time in the place of Zakaria Haddouche, in the last game against Portugal and after the national team was eliminated, Meziane participated in the entire 90 minutes. in 2017 Meziane calls for the first time for the Algeria A' national team in the 2018 CHAN qualification against Libya.

Output:
3