function solution(a, b) {

    if (a.join('') === b.join('')) return true;

    let array1 = [];

    let array2 = [];

    for(let i = 0; i < a.length; i++) {

        if (a[i] !== b[i]) {

            array1.push(a[i]);

            array2.push(b[i]);

        }

    }

    array2 = array2.reverse().join('');

    array1 = array1.join('');

    if(array1 === array2) return true;

    return false;

}