function solve(arr) {
    let args = arr[0].split(' ').map(Number);
    console.log(
    checkForSum(args[0], args[1], args[2]) ||
     checkForSum(args[1], args[2], args[0])||
    checkForSum(args[0], args[2], args[1]) ||
        'No'    );

  function checkForSum(first, second, sum) {
    if (first + second !== sum){
        return false;
    }
    if(first > second){
        [first, second] = [second, first];
    }
    return `${first} + ${second} = ${sum}`;
  }
}
