How to add firebase sdk?

Question

android studio

Good afternoon, I'm trying to add a database, but there was a problem, I don't understand where to add these lines?

spoiler

buildscript {
  repositories {
    // Check that you have the following line (if not, add it):
    google()  // Google's Maven repository

  }
  dependencies {

    // Add this line
    classpath 'com.google.gms:google-services:4.3.10'

  }
}

allprojects {

  repositories {
    // Check that you have the following line (if not, add it):
    google()  // Google's Maven repository

  }
}

Answer 1

In build.gradle, project builder