Longest Sequence of Equal

let input = ['10', ['2', '1', '1', '2', '3', '3', '2', '2', '2', '1']];
let print = this.print || console.log;
let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);

const n = +gets();
const arr = gets();

let startingIndex = 0;
let count;
let finalIndex = 0;
let  maxCount = 0;

for(let i = 0; i < n; i++) {

    startingIndex = i;
    count = 0;
    let elToCompare = Number(arr[i]);
    for(let j = i; j < n; j++) {
        let el = Number(arr[j]);
        if(el === elToCompare) {
            count++;
        } else {
            break;
        }
    }
    if(count > maxCount) {
        maxCount = count;
        finalIndex = startingIndex;
    }
}

let result = arr.splice(finalIndex, maxCount);
print(result.length);