¿My Arduino is broken? Help!

Everything worked fine yesterday, but today I notice reading “analogRead ()” throughout the pins A0, A1, etc … display data in Serial.print () in a rare language.

For example, show letters “S°,sS,S0, …”

I leave an Image

PLEASE HELP ME
Thanks.

Image? How about the code. That might be far more helpful in ferreting out what your issue is.

Are you sure you have the baud rate in the Serial monitor match the baud rate in the code?

the Code is very simple:

int p;
void setup() {
pinMode(A0,INPUT);
Serial.begin(9600);
}

void loop() {
p=analogRead(A0);
Serial.println(p);
}

I have no idea what happened

Delta_G:
Are you sure you have the baud rate in the Serial monitor match the baud rate in the code?

This is not the code from your picture.

In that code it seems you are using pin 1 as an output.
If you write to that pin on most Arduinos you will disturb the serial communication.

Does the posted code really produce the same output?