Solution required using R

which lists the total number of medals won by the United States and Canada at the Winter Olympics over time. Using R, draw two time-series curves in a single chart to see how well have Canada and the United States performed at the Winter Olympics?

Year Canada United States 1 1924 1 4 2 1928 1 6 3 1932 7 12 4 1936 1 4 5 1948 3 9 6 1952 2 11 7 1956 3 7 8 1960 4 10 9 1964 3 7 10 1968 3 7 11 1972 1 8 12 1976 3 10 13 1980 2 12 14 1984 4 8 15 1988 5 6 16 1992 7 11 17 1994 13 13 18 1998 15 13 19 2002 17 34 20 2006 24 25 21 2010 26 37 22 2014 25 28