Game system control

local component = require("component")
local event = require("event")
local m = component.modem -- get primary modem component
while (1==1) do
  os.execute("cls")
  print("1) computer 1")
  print("2) computer 2")
  print("3) computer 3")
  local sel = io.read()
  if (sel=="1") then
    print("Enter new score")
    local num = io.read()
    m.broadcast(1, " " .. num)
  end
  if (sel=="2") then
    print("Enter new score")
    local num = io.read()
    m.broadcast(2, " " .. num)
  end
  if (sel=="3") then
    print("Enter new score")
    local num = io.read()
    m.broadcast(3, " " .. num)
  end
end