let x = [3,1,3,2,0];
  let left =0;
  let right= x.length;
  let midPoint=0;
  let leftSum =0;
  let rightSum =0;

  if(right % 2 !== 0){
    midPoint = Math.floor((left + right) / 2);
    leftSum = getSum(x.slice(0,midPoint));
    rightSum = getSum(x.slice(midPoint+1,right));
    if(leftSum === rightSum){
       console.log("midpoint",midPoint);
    }else{
      console.log("-1")
    }
  }
  function getSum(arr){
    let result = arr.reduce((acc,curr) =>{
    let ans = acc + curr;
    return ans;
  },0);
  return result;
  }
  


















// while(left < right){
 
//   if(sumLeft === sumRight && sumLeft === 0 ){
//     console.log("line 15",left);
//   }
//   sumLeft += x[left];
//   sumRight += x[right];
//   // console.log("sumLeft " + sumLeft + " sumRight " + sumRight);
//   left++;
//   right--;
// }



 // if(x[left] === x[right] ){
  //   console.log("line 13",left)
  // }
  // if(x[left] !== x[right]){
  //   sumLeft += x[left];
  //   sumRight += x[right];
  // }