var strAdd = function(srcA, srcB) {
var i, temp, tempA, tempB, len, lenA, lenB, carry = 0;
var res = [],
arrA = [],
arrB = [],
cloneArr = [];
arrA = srcA.split('');
arrB = srcB.split('');
arrA.reverse();
arrB.reverse();
lenA = arrA.length;
lenB = arrB.length;
len = lenA > lenB ? lenB : lenA;
for (i = 0; i < len; i++) {
tempA = parseInt(arrA[i], 10);
tempB = parseInt(arrB[i], 10);
temp = tempA + tempB + carry;
if (temp > 9) {
res.push(temp - 10);
carry = 1;
} else {
res.push(temp);
carry = 0;
}
}
cloneArr = lenA > lenB ? arrA : arrB;
for (; i < cloneArr.length; i++) {
tempA = parseInt(cloneArr[i], 10);
temp = tempA + carry;
if (temp > 9) {
res.push(temp - 10);
carry = 1;
} else {
res.push(temp);
carry = 0;
}
}
return (res.reverse()).join('');
};