void setup() {
pinMode(13, INPUT);
}
void loop() {
digitalWrite(13, HIGH);
delay(1000);
digitalWrite(13, LOW);
delay(1000);
}
dm9pZCBzZXR1cCgpIHsKICBwaW5Nb2RlKDEzLCBJTlBVVCk7Cgp9Cgp2b2lkIGxvb3AoKSB7CiAgZGlnaXRhbFdyaXRlKDEzLCBISUdIKTsKICBkZWxheSgxMDAwKTsKICBkaWdpdGFsV3JpdGUoMTMsIExPVyk7CiAgZGVsYXkoMTAwMCk7Cn0K