CTRL+C, CTRL+V and SHIFT+ALT. about adafruit-trinket-usb HOT 1 CLOSED

#include <TrinketHidCombo.h>

#define USB_CFG_DEVICE_NAME 'S', 'o', 'k', 'o', 'l', 'o', 'v' 's', 'k', 'y', ' ','P','A','D',
#define USB_CFG_DEVICE_NAME_LEN 15

#define PIN_BTN_A 0
#define PIN_BTN_B 2

void setup()
{
  pinMode(PIN_BTN_A, INPUT_PULLUP);
  pinMode(PIN_BTN_B, INPUT_PULLUP);

  TrinketHidCombo.begin();
}

void loop()
{
  uint32_t now = millis();

  if (!digitalRead(PIN_BTN_A) && !digitalRead(PIN_BTN_B))
  {
    TrinketHidCombo.pressKey(KEYCODE_MOD_LEFT_CONTROL, KEYCODE_A);
  } else {

   if (!digitalRead(PIN_BTN_B))
  {
     TrinketHidCombo.pressKey(KEYCODE_MOD_LEFT_CONTROL, KEYCODE_C);
  }

  if (!digitalRead(PIN_BTN_A))
  {
    TrinketHidCombo.pressKey(KEYCODE_MOD_LEFT_CONTROL, KEYCODE_V);
  }
  }

  
  TrinketHidCombo.pressKey(0, 0);
  TrinketHidCombo.poll();
  delay(100);
}