import machine
from machine import Pin
import time

# # Define the PWM pin
# pwm_pin = machine.Pin(16)  # For example, GPIO pin 16 (GP16) is one of the PWM pins on Raspberry Pi Pico
# pwm = machine.PWM(pwm_pin)

# # Set the frequency of the PWM signal
# frequency = 10  # Hz
# pwm.freq(frequency)


# duty_cycle = 99  # 50% duty cycle for a square wave
# pwm.duty_u16(int(65535 * duty_cycle / 100))  # Convert percentage to 16-bit integer value

# time.sleep(1)

keys = {
    {"1", "2", "3"}
}

print(keys[0][0])