/**

* Definition for singly-linked list.

* public class ListNode {

* int val;

* ListNode next;

* ListNode(int x) { val = x; }

* }

*/

class Solution {

public ListNode addTwoNumbers(ListNode l1, ListNode l2) {

ListNode result=new ListNode(0);

ListNode p=result;

int carray=0;

while(l1!=null||l2!=null){

if(l1!=null){

carray+=l1.val;

l1=l1.next;

}

if(l2!=null){

carray+=l2.val;

l2=l2.next;

}

p.next=new ListNode(carray%10);

carray/=10;

p=p.next;

}

if(carray!=0){

p.next=new ListNode(carray);

}

return result.next;

}

}