switch(arr){
case [0, 0]:
  console.log("hereee")
  return 0;
case [0, 1]:
  return 1;
case [0, 2]:
  return 2;
case [1, 0]:
  return 3;
case [1, 1]:
  return 4;
case [1, 2]:
  return 5;
case [2, 0]:
  return 6;
case [2, 1]:
  return 7;
case [2, 2]:
  return 8;
default:
  console.log("but heree")
  return -1;
        }