n,k,x = gets.chomp.split(" ").map{|u|u.to_i}
a = []
n.times do|i|
    a.push(i+1)
end
b =[]
(x-1).times do 
    d = (gets.chomp.split(" ").map{|u|u.to_i})
    a[d[0]-1],a[d[1]-1] = a[d[1]-1],a[d[0]-1]
end
gets
(k-x).times do 
    b.push(gets.chomp.split(" ").map{|u|u.to_i})
end
c = gets.chomp.split(" ").map{|u|u.to_i}
(0..(b.size-1)).reverse_each do |i|
    c[b[i][0]-1],c[b[i][1]-1] = c[b[i][1]-1],c[b[i][0]-1]
end
ans = []
n.times do |i|
    ans.push(i+1) if a[i] != c[i]
end
puts "#{ans[0]} #{ans[1]}"