n = gets.to_i
c = gets.chomp.delete(' ')
q = gets.to_i
for i in 1 .. q do
    t, *p = gets.split
    x, y = p.map(&:to_i).map{|n| n - 1}
    if t == "!" then
        c[y], c[x] = c[x], c[y]
    else
        puts (eval c[x .. y])
    end
end