Why does this switch statement return 23 instead of 2? [closed]

I am a bit confused here, the result is 23 but I keep thinking it should be 2, I need help understanding why it's returning 23 instead of 2, thank you!

int x = 2; 
switch(x){
  case 1:
    cout << "1";
    break;
  case 2:
    cout << "2";
  case 3:
    cout << "3";
    break;
  default:
    cout << "0";
}