io.input("test2")
io.input("input")

local cycle = 1
local x = 1
local strengths = 0
for line in io.lines() do
  local ins, num = string.match(line, "^(%a+) (-?%d+)$")
--  print(cycle, (cycle-19)%40, x)
  local period = (cycle-20)%40
  if period == 0 then
    print(cycle, x)
    strengths = strengths + cycle*x
  elseif num and period == 39 then
    strengths = strengths + (cycle+1)*x
    print(cycle, x)
  end  

  if num then -- addx
    cycle = cycle + 2
    x = x + tonumber(num)
  else
    cycle = cycle + 1
  end
end

print("x", x, "cycle", cycle)
print("part 1", strengths)