Functions in Dart language

//Challenge: Without changing the main() function, can you make this code work and get the result printed in the console?

void main() {
  
 int step1Result = add(n1: 5, n2: 9);
  print(step1Result);
  
 int step2Result = multiply(step1Result, 5);
  
 double finalResult = step2Result / 3;
  
 print(finalResult);
  
}

int add({int n1, int n2 }){
  return n1+n2;
}

int multiply(int n1, int n2){
  return n1 * n2;
 
}