Dart3

num absu(num x){
  if(x<0){
    return -1*x;
  }
  else{
    return x;
  }
}
void main() {
  var result=absu(1);
  print(result);
}
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void newPrint(){
  print("Function called");
}

// num sum(num x, num y){
//   return  x+y;
// }

num sum(num x, num y)=> x+y;

// Driver code
void main() {

  //calling newPrint
  newPrint();
  newPrint();

  //calling sum
  var result=sum(1,2); //print(sum(1,2));
  print(result);
}
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num square (num x)=> x*x;

num squareSum(num x, num y)=>
  square(x) + square(y);

void main(){
  var result = squareSum(3,2);
  print (result);
}