let nn = 0
basic.showIcon(IconNames.Happy)
basic.forever(function () {
    nn = randint(1, 3)
    basic.showNumber(nn)
    if (nn <= 1) {
        pins.digitalWritePin(DigitalPin.P0, 1)
    } else {
        if (nn <= 2) {
            pins.digitalWritePin(DigitalPin.P1, 1)
        } else {
            pins.digitalWritePin(DigitalPin.P2, 1)
        }
    }
    basic.pause(2000)
    pins.digitalWritePin(DigitalPin.P0, 0)
    pins.digitalWritePin(DigitalPin.P1, 0)
    pins.digitalWritePin(DigitalPin.P2, 0)
})