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The five youngest men to become President of the United States include Bill Clinton, Barack Obama, John F. Kennedy, Theodore Roosevelt, and Ulysses S. Grant. Put them in order based on how old they were at the time of their first inauguration.
Of the top ten tallest roller coasters in the world, six are located in the continental U.S. The remaining four coasters are all located outside the United States. Name two of the four countries where the remaining 4 tallest roller coasters are located.